1. Brave Web Browser.
Not only does Brave offer private browsing but if you turn on ads you can receive a reward in BAT which can be exchanged on the uphold wallet. You could also verify your website and get rewarded tips from other brave users.
2. Coinbase Tezos staking.
Get over to Coinbase and purchase some Tezos coin. You will immediately begin earning interest on what you own and its compounded. The current rate is %5.44 which beats out most banks these days.
3. Publish0x.com tipping rewards.
Tip articles you read and you choose how much goes to the creator and how much you get to keep for yourself.
4.Blockfi interest on your crypto.
Deposit your crypto at Blockfi and earn compound interest. 500usd worth of bitcoin has earned me .16 cents in two days. Its a really neat way to earn money even in a bear market.
Those are my 4 favorite passive income sources. If there are any more out there you have tried and like let me know in the comments below.