Just check out a local head shop and see what you like. Pretty much anything name brand there is going to be good quality.
Some of the popular brands in my area:
Roor - high quality, smokes good, all around good bongs (pricey)
Zob - i really like the new stuff they're making, all sorts of sizes available too
ADS - very artsy pieces
Illadelph - high grade pieces, they both look appealing and smoke very well (pricey)
US Tubes - strongest glass i've ever seen, they test it in
videos too
Medicali - standard glass, good prices, nothing too spectacular but good pieces
Toro - personal favorite, custom made high end glass that comes in all sorts of styles (pricey)
Stay away from Weedstar imo, so many people talk about how easily they break and it would make sense if you look at how cheap some of their stuff is