Oda will likely use Dorry and Brogy as hype tools tbh
It is a running pattern with giants in OP. Dorry and Brogy being strong won’t save them from it.
My guess is Kidd will beat one of them with relative ease. It would be a good way to redeem his image after the loss from Shanks, and they did destroy his ship.
I think the other one could very well job to Teach, Akainu, Loki, or whomever this arc’s villain is. I’m leaning on Akainu at the moment. He really hasn’t got a good moment post skip, so beating a giant captain would be deserved.