I can't say what's best but i'll recommend banana/coral glow. I think banana sugar stuff is pretty nice and criminally underrated. I'm shooting for this down the road with my sugar bee x nana.
Also as for that sugar het pied you said you had i don't know. I'm not sure how well sugar holds up to pied bald cause i've never seen a sugar pied. I would determine how well sugar holds up to the pied gene before deciding something for him. A sugar pied could be all white. If sugar pieds are high white i'd go with enchi cause enchi holds up well to pied bald. If sugar pieds are all over the place low, medium and high white then i guess pick anything. Pastel and banana go good with sugar. Pastel sugar pieds or banana sugar pieds sound really great to me.