Bigger girl, skinny guy sex positions

My boyfriend and I are recently becoming more intimate... it’s taken us a while because he recently had shoulder surgery and can’t use his left arm.

We got the okay for sex from the dr and have the opportunity this weekend. But not all positions are the best considering weight on his shoulder isn’t recommend yet, and painful for him.

With all that I’m bigger than him in the weight category by at least 50lbs. Doggy is my fav and a good option for this situation but more variety would be appreciated. I’m not a huge fan of being on top and have only been on top once or twice with previous partners.. help lol