There are so many options for support garments, so you're in luck! I do have several reviews on my blog, but I'd say there are two main categories:
Wraps (from maternity wraps to ostomy-specific wraps that have pouch pockets)
Support Belts (stuff like the Stealth Belt, "Eh Ok Mates", etc.)
Wraps are the cheapest and easiest to use, but don't offer full support for doing things like running or sports. Support belts offer great support, but need to be fitted properly or they'll they tight and restrict output.
I'm a fan of wraps for daily use, but I do own a Stealth Belt and that offers some advantages - one caveat with the Stealth Belt that I have is that you have to wear your pouch horizontally, which may not be convenient for many people (and it makes emptying your pouch a bit awkward).
Let me know if you've got any questions :ybiggrin: