You might try windworks sailing, or Seattle sailing at shilshole in north seattle. San point sailing on Lk washington might be another, altho they have dingy types vs the other two have mid 20 and up boats Seattle sailing has mostly J's, as they are part of sailboats NW witch is the J-boat dealer. WIndworks has a mixture of boat available, sometimes with a skipper.
She drives me boat,
I drives me dinghy!