One of my favorites was Avis Ware, from back before she slimmed down. There aren't really any good examples on the site, but look at the preview pics from her profile on female-power.net to get an idea of how incredible her biceps were:
She also had good stuff on krivsstudio.com
Another somewhat obscure one is Yasha Consintino:
There isn't a lot out there of her aside from contest footage, but she does have one awesome video on Awefilms that really showed off her biceps peaks. Also there was some nice footage of her shot by tomnine on thevalkyrie.com
As simple as it sounds... Post your pics/vids here and provide names if you have them!
Margie Martin:
https://www.girlswithmuscle.com/1211595/ https://www.girlswithmuscle.com/1306840/
Shanique Grant:
Andrea Shaw: