You do have some difficult choices but at least it's because you have multiple good males to use
I'll do my best to give my opinion on what I'd personally like.

Enchi lesser x blk pewter cypress, for an extra gene in the mix
Enchi x CG enchi leopard spider, wouldn't make sense imo to just make simple combo clown hets
Blk head x banana pied, banana looks excellent with dark genes and having one that's het pied could lead to exciting future projects
Leopard x banana clown, another dark gene that goes great with banana and I love leopard clown combos