Mel Bay is a publisher you might look into; they have a huge number of large-format songbooks in paperback and they might well have what you're looking for.

Other than that, people here are pretty good at doing online searches. If you make requests title by title, you will probably meet with a lot of willing help that may even help you learn how to do the searches yourself. Being around Mudcat can't help but extend your computer knowledge! Most of us like to think it's made US smarter. :~)

So what's a song you're thinking of doing with the band? Let's start there.

~Susan