PABaseball nailed it. Focus on becoming a more physical player. At his current size the showcases will not add much value this summer. He might get a couple compliments but nobody is going to seriously recruit him.
My son was in an almost identical situation last summer. Only difference is my boy was 6’1”. Did a HF showcase and a coach told him almost word for word what PAB said above. My son took the fall off from playing to train and gained 40 lbs.
My son is/was also a primary C and a P. As a 2023, this is a big summer for him. He’ll decide at the end of the HS season what his focus will be. Leaning towards P but a few schools are still talking to him as a C. Even has a couple HA D3 schools that have said they like him as a 2-way C/P.
Make sure you know how the summer coach plans to use your son. Mine is either going to PO or catch the first game and pitch at some point 2-3 days later. Maybe DH.