^.....the 2021 GT Bay thread has some great info and pics for folks seeking info. Maybe it's me but so far, the fishing seems a tad off this year. I like starting at first light.....less people and the fish don't have headaches from all the boat and jet ski traffic.
Deep Water Point has some good spots. The fingers north of Yuba too. The charters work the south and SW end of the bay. It will be a matter of watching your fish finder for the drop offs and seeing what's around. After a bit of recon, you will see a pattern of where the fish are that day. You should be able to key in on that. Finding the fish is one thing, getting them to bite is another.
My two cents is related to the boating side of it. Pay attention to the wind direction. That may dictate which boat ramp you want to use. Going out is usually easy, it's the coming back after the wind picks up that can be the tricky part....especially trying to load the boat.
Good luck and post up your pics.