Founded in 2013 by Jeremiah Shoaf, Typewolf is a superb resource with a focus on all things typography. Here you can find web font recommendations and appropriate pairing suggestions.
There’s also a neat web fonts ‘in the wild’ section that showcases websites that have well-considered typography. The actual fonts used are also detailed so this is particularly useful. Finally there’s a handy resources section with links to other type-related resources around the web.