I have a few mandolins and I have to say they are amazing.
Some bands you should listen to with mandolins in them are Mumford & Sons, The Lumineers, and Fleet Foxes. Ironically those are my 3 favorite bands, Mumford being my most favorite.
"Charlie Boy" by The Lumineers is a great mandolin song, so is "Winter Winds" by Mumford & Sons.
Message me if you need any help