I used to recommend moon moon for his rein hardt early ow days he was offered from at least 2 teams to rein for them. But he gave up on shield bot sadly now mostly troll picking heroes but having doing well while vibing with his chat is more of his thing vs like calvin you can learn some from on more standard Meta type of things as well as surefour, sinatraaa, iddqd, and Jake just a few bigger pro streamers who look to teach. And mendokusai is great as well