To earn rewards, you must delegate your stake account to a validator. There are many ways to select a validator.
We recommend looking on Stakeview to see the highest APY validators and selecting one of those. To further increase decentralization, you can also choose a validator further down the list on Stakeview.
There are also many ecosystem projects that run validators that you can delegate to in order to support them. One example is Parrot.fi's validator. You can search for them when you click delegate or enter their vote account: GBU4potq4TjsmXCUSJXbXwnkYZP8725ZEaeDrLrdQhbA.
