Considering how the market has been quite indecisive, a good number of ways to earn still exist apart from necessarily trading. It could be Airdrops etc.
Through my years in the CryptoSpace, I've found platforms often organise events to let users earn passive income through risk averse and conservative means.
Being an Asian Crypto enthusiast, I'm always on the lookout for events tagged along my region! Will truly appreciate if you guys have eyes on any. Will be in the comments.
In my opinion, the only mode of passive income is staking. It is nearly risk free but still you will have to factor in the price fluctuations of the coins you are staking.
Another mode can be p2p lending but that's not risk free at all. Rather it carries a very high amount of risk. So staking is one option you can explore.
Airdrops are not passive income.