Wembanyama is a C, just not a traditional one like Poeltl, so he'll need a specific type of C (like Collins) primarily starting next to him for probably a few seasons.
Then throughout the game, gauge what he needs next to him based on matchup (and availability).
Too many extreme views between those who think he should be the solo true big at virtually all times and those who not only think vice versa, but that a team already teeming with limited - non shooters needs to somewhat splurge on an aging one at C.