There are many books about chains and their construction. I’d
suggest going to the library and reviewing their collection. The best
libraries would probably be found at a university with a fine arts
program that includes metals.
Here are the ones in my library:
Great Wire Jewelry - Peterson, Irene From
Silver Wire Jewelry - Peterson, Irene From
Woven Wire Jewelry - Chandler, LInda L. and Ritchey, Christiane R.
Crocheted Wire Jewelry - Fisch, Arline M.
Classical Loop in Loop Chains - Stark, Jean
Sources are the suppliers like Rio Grande, Stuller, and of course,
Judy in Kansas, where strawberries are in bloom, but another freeze
is predicted. goshdarnit!