I have it installed on a phone released in 2014 - Motorola Nexus 6. Basically it will not ask for more resources than Android 6 so if you had before Amdroid 6 on your phone and you will find a custom ROM with Nougat flavour on XDA try it. .
as far as i know at the moment alot of the roms on xda are rather buggy. id wait it out for stable release. unless you are adventurous enough to have a ~40% functional device. havnt seen any reported to work with multi rom either.