For the graphite rods usually there is no problem to find a reel to balance the rod well, some prefer large arbor reels other - more classical designs. There is a way to balance a light reel on a rod and I use it when I need to balance some of my cane rods - 8'6" and
9'. I like the look of my light hardy reels on boo , so to make them heavier for better balance while casting I reel on the spools with a couple of Rio T-14 /30f of extra fast sinking line made with some tungsten core for making your own patterns of sink tips or shooting heads/ until I balance the reel and rod to my liking. Bonus: no need to spend more money to get one of the heavy cascapedia or other s-shape reels to balance the rod

although they look nice