So easy I've already done it! 
[RELEASE] CoCoHue: Hue Bridge Integration (including scenes!)
As far as Hue itself goes, there is only the official Hue Bridge (ignoring third party emulation like diyHue) and two-ish generations. If you're only using it with Hubitat, any Hue Bridge will work, but you might as well get the v2 (or v2.5; no real difference) Bridge to get all Hue features if uoire getting one for the first time. This is the square and not the round Bridge. For bulbs, most Zigbee bulbs will work (Sengled and North African Osram/Sylvan are notable exceptions), but only Hue bulbs will support all features like default power loss settings and HomeKit integration. They aren't cheap, though, at least not if you want color. Innr, Eria, Cree, and others are some that i know also work. Ikea Trådfri sort of does, but I'd avoid the color models due to an odd color model implementation.
