Which wax?

[So.Cal.Super]

Is like asking which oil
You said you just finished color sanding, my recommendation would now be to polish, you probably have 2 or 3000 grit marks to remove, 3m makes great products for this in stepping down to final finish. This needs to be done with machine though. As far as wax goes,
Nufinish, meguires tech wax, those are synthetic waxes, longer durability and great shine (usually 6 months + protection) but can lack that warm glow a pure carnuba can give like mothers, meguires. But those need to be applied about every 30 days.
You can use a synthetic to seal and carnuba on top. Try it you make like it.
It all depends on what kind of finish you want, your level of ocd and how often you want to clean and wax.