Eric Jones' "Metal" videos are a great place to start. Dan Watkin's has a great website at coinvanish.com that covers a lot of basics. Dan also has a video call Coin Man Walking. I was fortunate to learn coin the basics from Eric, Dan and Kainoa Hardbottle at a workshop.
Ah, there I cannot help you. I love coin magic as well but there are simply not a lot of tricks with them other than vanishes, productions and multiplications.
You haven't looked hard enough. The least expensive and most extensive book is Bobo's
Modern Coin Magic. Beyond that you can learn essentials in Richard Kauffman's
Coin Magic, Dan Watkins
Coinvanish series, David Roth's
Expert Coin Magic. To take it to the next level, get Chris Kenner's
Totally Out of Control and Troy Hooser's
Moments and
Destroyers. There also are great coin routines in
Apocalypse,
The Collected Almanac,
Stars of Magic,
Best of Slydini / Magical Wold of Slydini,
Impossibilia,
Carneycopia and lots of other books.