New songs to learn on the guitar?

I have been using the time at home (I've recently fractured my ankle) to try and learn various songs on my guitar, which has been overdue by about 10 years. So far I've done Fever (Elvis), Songbird (Eva Cassidy), More than a Melody (Anna Nalick), Hallelujah, Little House (Amanda Seyfried), Paperweight and Hello (Schuyler Fisk), The Streets of London, Sunrise (Norah Jones), Nothings Real but Love (Rebecca Ferguson) and several that I've written myself.

Has anyone else got any suggestions of songs I can add? I'm thinking of maybe starting with, Leaving on a Jet Plane? Thanks :)