You didn't tell what coins you started with, so we can add "other" coins...

However...there are the PoS coins, where you have to invest first and get some coins, then the passive income can start.
Then there are the masternode coins, where, again, have to acquire a certain amount of coins and possibly an AWS.
There is also MinexCoin where you park the coins like in a bank; overall not much different from PoS, but less hassle.

All these need initial investment. Historically the PoS coins seem to dilute their value over time. Minex faces now scam accusations, so while you can earn by parking, you may lose by price fall.
I may be wrong in all this, do your own research, of course.

Also, with the decline the crypto market has faced this whole year, there are not many ways that "produce" coins and get an income from it. I think that the best is to pick some really good coins, buy whether they allow passive income or not, and wait for the market to get back to life. (Again, use your own thinking/decisions whether you invest or not and where you do that.)