Check out these sites that I have bookmarked.
These are some I recommend for a community or a small business. Or who knows, may be good for personal use like a portfolio too.
Unlimited downloads only
$29 p/m on Envato Elements
Download over 18,000 items now
Learn almost anything with
Envato Tuts+ for free
9000 free tutorials, 3000 paid courses
Designers matched perfectly to
you on Envato Studio
2000 artists ready to undertake your work