I use 3 forte ll's across the front and original forte's for the rears and the extra forte ll for a rear center for 6.1.
So I would stick with the forte if I were you, you are not going to find anything that will even come close to that sound for twice the price you would pay. For rears speakers some of the post before this had some good ideas, the rears are not nearly as important as the front 3, keep them matching if nothing else.
You will be shocked what a forte HT & sub will sound like, guaranteed !