You could always go for “new” old music. Nothing wrong with Oingo Boingo or the Beatles.
Or you could try Pandora or Last.fm for more music, similar to what you like but not the same.
What are you really looking for? Do you want new and different indie bands? Or do you want more established bands that you may not have heard of or had much interaction with? And what kind of music do you like? Answers to these questions will help us figure out more music for you.