(...)Or are there other passive ways of earning you will recommend for those that already missed the ongoing pump and are skeptical of price dumping on them?
You can participate in the referral program of CEXs, and not only in the bull season but also in the bear season, this passive income is still a pretty good form. But it needs you to have a community and know how to attract users to sign up through your link.
In addition, I think
airdrop, bounty, testnet,... are also some forms of income for us in the space.
While it may seem convenient at this stage to see profits, the value of cryptocurrencies can fluctuate wildly and without careful research, passive income can also be risky lost money.