These are probably gray chubs, but might also be brassy chubs, or even a mixture of both. The two species look similar and are found in similar locations, in the surge zone. I like to find a safe spot, just outside this zone, and watch the swells roiling in and see chubs and other fish swish back and forth with the swell.
Chubs are quite common and they aren’t shy. They’ll pass quite close, often with a cheerful, engaging look, which makes them a fun fish to encounter.