Freeze ahead of time

Hello!

I ended up with quite a bit of discard (1-2 weeks old), and want to make something with it that I could freeze now and bake later. I was thinking Banana Bread, Bagels (freeze after boiling), Pizza crusts, and Whole Wheat or Whole Grain Hamburger Buns. Will these work? Any other ideas are welcome :) Oh, by the way, can I freeze onion rings in batter? Thanks!