Weird al is a rather obvious.
But Axis of awesome is also a sheer favourite of mine. their four chords song is a genius composition mashup of many iconic songs throughout the years.
Whitney Avalon is a very underrated one who does some really good and rather witty pop culture themed songs.
Least favourite: Dennis Leary (He lives up to his name)
I’ve always liked Steel Panther, good hair metal, just rude, crude and funny.
Ninja Sex Party is good value.
Flight of the Conchords are awesome.
Around 2016 I was called up on stage by them (Steel Panther) during a winter concert. A year later I was at a show around the same time and a random guy standing behind me remembered me and sent me a video of myself on stage!
I say that to say this: Gloryhole, Community Property, and Poontang Boomerang are some of my favorites! Most recently saw them again in 2023, did not get on stage that time lol