Academic fit question

My kid is in the top 3 in his high school. Last year due to scheduling issues he had to take an honors class for history rather than AP or GT and he was miserable. He ends up carrying the weight of most group projects. He wants to go to a place where he’s in the median, academics-wise, rather than at the tippy top. He is tired of being the smartest kid in the room and wants more intellectual equals.