If you are looking for an easily ditched option that is comfortable, stable and inexpensive, perhaps a freedive type belt will work for you.
This belt provides several advantages over a traditional nylon belt.
Finally.......I was about to mention "rubber weight belt".........with 1 lb. weights for comfort and streamlining.
I just use 2 1-LB weights in a small XS pouch behind gauge (left) D-ring when I'm using a neutrally buoyant light canister, AL plate and double-fleece+1 upper body fleece. With a 2 lb negative canister, I use no weights.
The rubber waist belt is super comfortable, but I don't need it, although it made it super easy to figure out my weight needs by letting 1 lb weights fall down to the bottom one by one while I held it in my hand. I started with 5 and whittled it down to 2 to 0, depending on canister.....in fresh water.