Hearts of Gold:
Gold - metal men
Booster Gold
Goldstar (Booster's sister)
Goldstar - ernest widdle,
https://comicvine.gamespot.com/goldstar/4005-106631/
Golden Archer
Goldrush (DC)
Golden Girl (Cap ally)
Sandy the Golden Boy (Sandman)
Golden Oldie (Aunt May as a herald of Galactus)
Golden Angel (Marvel 616,opposed Dracula)
Vs.
Silver Spoons (as villains, at least all have been villains or antagonists at some point):
Silver Samurai
Silver sable
Silver Banshee
Quicksilver
Silverback (Spider Man villain)
Silver (Pokemon trainer)
Silver Dagger (Dr. Strange villain)
Silver Surfer, as herald of Galactus
Terry Silver (Karate Kid)
Silver Kinkaid (the Boys)