Hi. So get alby is great really, people use it a lot.
A bit old article but really good - https://darthcoin.substack.com/p/getting-started-ln
I use iris for pc, it works fine don't tried others for pc.
To convert there are a few non-kyc exchangs that do that https://www.athena-alpha.com/exchanges/ . Didn't tried other metods
Faucet for a few sats to start zapping and stuff