Muun is a fake lightning wallet that doesn't work when on-chain fees are high, one of the best reasons to use lightning. Don't go with that one.
Discussion
I'm planning on running my own node in about a month (not sure about running lightning, though), so I'll probably add another wallet to the mix - will drop Muun because of those high fees. That is one reason why I put a little on Aqua.
Keep hearing Speed is really great for newbies (like my wife). But also hear about Breez and I still like supporting Mallers with Strike.
Strike is great if you don't mind using a custodial wallet. It's awesome for stacking.