Transition from Day School to BS as Junior

We are exploring boarding schools for our son who is a rising junior in the fall. Focus is on all boys schools with a minimum of 35-40% boarders, strong academics and visual/ performing arts programs. Also considering engaging an experienced educational consultant who can help find the right fit for our son. Would appreciate recommendations on all boys BS and Educational Consultants experienced with transitions.

Your time table will be limiting. @Garandman used someone successfully with similar constraints.