Guitar songs to learn?

Radiohead is a great start. If you like clic rock, Led Zeppelin is a great crowd fave, as can be the Beatles, and they're both easy to learn. For rock, I would suggest Red Hot Chili Peppers, maybe Blind Melon or Queens of the Stone Age. Give a few songs a listen, whatever catches your ear and is within your skill level, learn it. And worst case scenario, you'll never play that song but you'll be a more versatile guitarist for knowing it.