@tubeguy76...Monosaudio Pure Copper unplated. I’ve tried their silver, gold, rhodium plated and the Pure Copper sounds very, very nice! I sure liked them better.
https://www.amazon.com/gp/product/B07ZZCVY7X/ref=ox_sc_saved_title_3?smid=A3VVEYV1N1AUCZ&th=1
I have also tried some of the really expensive plugs from other companies and found them to be a big waste of money. The Monosaudio are GREAT and very affordably priced.
I even saved enough to make them pretty with Techflex, but you can leave them plain.