From investing in REITs to online real estate investing platforms, rental properties or renting a room, there are many ways to diversify your portfolio by investing in real estate.

Buying a property to rent out is one of the oldest ways of investing in real estate. But if you’ve ever had a landlord, you probably don’t dream of being one: Fielding calls about oversized bugs and overflowing toilets doesn’t seem like the most glamorous job.

 But done right, real estate investing can be lucrative, help diversify your existing investment portfolio and eventually provide a stream of passive income. And many of the best real estate investments don’t require showing up at a tenant’s every beck and call.

 Understandably, many investors don’t know where or how to invest in real estate. Here are some of the best ways to make money in real estate, ranging from low maintenance to high.

5 Ways to get started in real estate investing

 Buy REITs (real estate investment trusts)

 REITs allow you to invest in real estate without physical real estate. Often compared to mutual funds, they’re companies that own commercial real estate such as office buildings, retail spaces, apartments and hotels. REITs tend to pay high dividends, making them a common retirement investment. Investors who don’t need or want regular income can automatically reinvest those dividends to grow their investment further.

 Are REITs a good investment? They can be, but they can also be varied and complex. Some trade on an exchange like a stock, while others don’t. The type of REIT you purchase can be a big factor in the risk you’re taking on, as non-traded REITs aren’t easily sold and might be hard to value. New investors should generally stick to publicly traded REITs, which you can purchase through brokerage firms.

 For that, you’ll need a brokerage account. Opening a brokerage account takes less than 15 minutes, and many companies require no initial investment (though the REIT will likely have an investment minimum).

 You can also gain exposure to a more diversified selection of real estate investments by buying into a fund with interests in many REITs. You could do this through a real estate ETF or by investing in a mutual fund with multiple REIT shares.

 Use an online real estate investing platform.

Real estate investment platforms connect developers to investors who want to finance projects through debt or equity. Investors hope to receive monthly or quarterly distributions in exchange for taking on significant risks and paying a fee to the platform. Like many real estate investments, these are speculative and illiquid — you can’t easily unload them how you can trade a stock.

 The rub is that you may need money to make money. Many of these platforms are open only to accredited investors, defined by the Securities and Exchange Commission as people who’ve earned income of more than $200,000 ($300,000 with a spouse) in each of the last two years or have a net worth of $1 million or more, not including a primary residence. Alternatives for those who can’t meet that requirement include Fundrise and RealtyMogul.

1. Think about investing in rental properties.

 Tiffany Alexy didn’t intend to become a real estate investor when she bought her first rental property at age 21. Then, a college senior in Raleigh, North Carolina, she planned to attend grad school locally and figured buying would be better than renting.

 “I went on Craigslist and found a four-bedroom, four-bathroom condo that was set up student-housing style. I bought it, lived in one bedroom and rented out the other three,” Alexy says.

The setup covered all of her expenses and brought in an extra $100 per month in cash — far from chump change for a grad student, and enough that Alexy caught the real estate bug.

Alexy entered the market using a strategy sometimes called house hacking, a term coined by BiggerPockets, an online resource for real estate investors. It means you’re occupying your investment property by renting out rooms, as Alexy did, or renting out units in a multi-unit building. David Meyer, vice president of data and analytics at the site, says house hacking lets investors buy a property with up to four units and still qualify for a residential loan.

Of course, you can also buy and rent out an entire investment property. Find one with combined expenses lower than the amount you can charge in rent. And if you don’t want to be the person who shows up with a toolbelt to fix a leak — or even the person who calls that person — you’ll also need to pay a property manager.

 “If you manage it yourself, you’ll learn a lot about the industry, and if you buy future properties, you’ll go into it with more experience,” says Meyer.

 Consider flipping investment properties.

 This is how HGTV comes to life: You invest in an underpriced home that needs a little love, renovate it as inexpensively as possible and then resell it for a profit. Called house flipping, the strategy is a wee bit harder than it looks on TV. It’s also more expensive than it used to be, given the higher cost of building materials and mortgage interest rates. Many house flippers aim to pay for the homes in cash.

“There is a bigger element of risk because so much of the math behind flipping requires a very accurate estimate of how much repairs are going to cost, which is not easy,” says Meyer.

 His suggestion: Find an experienced partner. “Maybe you have capital or time to contribute, but you find a contractor who is good at estimating expenses or managing the project,” he says.

 The other risk of flipping is that the longer you hold the property, the less money you make because you may be paying a mortgage without bringing in any income. You can lower that risk by living in the house as you fix it up if the updates are cosmetic and you don’t mind a little dust.

1. Rent out a room

 Finally, you could rent part of your home to dip the edge of your toe in the real estate waters. Such an arrangement can substantially decrease housing costs, allowing people to stay in their homes as they continue to benefit from price appreciation on their property.

Adding roommates can also make a mortgage payment more attainable for younger people. But if you need more time to decide whether you’re ready, try a site like Airbnb. It’s house hacking for the commitment-phobe: You don’t have to take on a long-term tenant, Airbnb at least somewhat prescreens potential renters, and the company’s host guarantee protects against damages.

 Renting out a room feels much more accessible than the fancy concept of real estate investing. If you’ve got a spare room, you can rent it.

 Like all investment decisions, the best real estate investments are the ones that best serve you, the investor. Think about how much time you have, how much capital you’re willing to invest and whether you want to be the one who deals with household issues when they inevitably come up. If you need DIY skills, consider investing in real estate through a REIT or a crowdfunding platform rather than directly in a property.