Re: POS earnings

the coins in question are: Tezos, matic network, cosmos, swipe and ethereum 2.0.

Tezos is a good altcoin to stake and it's been on different exchanges and added that feature of staking for Tezos. Even ledger wallet which is one of the most known hardware wallet has also added the feature.
Ethereum 2.0 isn't yet there but soon it will.

I like XTZ as well I think they have done good so far , pos staking of that won't goove you better APR in compare to others but you know you are holding something won't hit parabolic candles and gives you some stroke!

They are doing pretty good. It is like an underdog altcoin which isn't being talked about. But just look to its volume and ranking.
It's been staying there stably. This is like a balancer of someone's portfolio but still, all depends to the understanding and preference of the holder.