Best method for anchoring patio cover posts?

I’m wanting to build a 12’x14’ patio cover over my deck, attached to the house with a ledger board, 2x6 roof joists, 6x6 posts and using polycarbonate panels for the roof. SEUSA, with no snow load. I’m receiving mixed recommendations for anchoring y 3 6x6 posts. I just received a quote and they wanted to use Camo post supports, but I’m not sure that sounds structurally right. I was planning on doing 3 sonotubes with cast in place Simpson hardware. Is that overkill? Is there another method I should explore?