Which songs should I learn to play?

So, I pretty much know how to play guitar, but lately I've just
learned to play some songs that only I like and aren't well-known by
people. Do you know which songs are like must-know of nowadays that I
could learn in an acoustic guitar?

some that occur to me are like wonderwall, save tonight, story of a
girl and stuff like that
(if you could suggest songs that girls would love that'd be great ;) )
lol