I would recommend Electrum for the desktop and the mobile phone, Phoenix for Android phones, and Wallet of Satoshi for the very beginner to start learning with tiny amounts (50-100 sats), since it's a custodial wallet, to later learn about channels and move to one of the others (non custodial).

I would strongly recommend against using Muun, since it isn't a LN wallet, but it uses submarine swaps to do LN transactions, and therefore it makes on chain transactions for every LN transaction. And, the worse of all, is that they hide that, and in my opinion, lying about it is the worse.

It seems, though, that they have received so many criticisms about that model that they are making some changes to have actual LN transactions. Let's hope it's true and they are honest about it.