My go-to colors are white, black and blue (more specifically, the bottom two right-most blues in the Infested palette.) At this point, the colors I use have kinda become 'my thing' and I feel weird if I'm not using a frame with those colors. Not like it bothers me though. The color combos work better on some frames compared to others. (And on others they blatantly don't. But I'm too lazy to fix 'em.) Anyway, examples on the frames you mentioned:
Ash Prime:
Frost Prime:
Oberon:
Titania:
Trinity Prime:
Nekros Prime:
Volt Prime:
Sometim