I don't own much stables, a bit of USDT though, will check that now.
For trading I'm still using fiat, however with a stable it would be advantageous because I wouldn't need to declare all my trades to the tax authorities. Is there a recommended stable ? Maybe one of the Euro pegged ones ?
Whoops, it was the previous story about blockfi where the lawyers were looking into their business and if their offerings are considered securities since they operate out of the US.
This is the major take away from this video on tether and what it can do with defi which is apocalyptic.

As for which one I'd use if I had too?

USDC
It is fairly clean being created from circle (I believe square bought them out and now is Jack in the box

) and is available from Coinbase.
But being a american company I don't know if it can be pegged to the euro.
So maybe somebody using coinbase and who is from Europe can answer this.