>>5299414The best one you can possibly get, if you ask me, is the SOC SPEC Unit 01. Unfortunately, the revised (and superior) verison might run you a bit over $100 if you buy from a Japanese site. I can assure you it is quite worth perusing.
Otherwise, there's not too much out there for the TV version to my knowledge. There are the early Revoltechs, which I've heard are kinda problematic, but look nice and are very affordable. Posing them might take a bit more effort than more modern figures, but it's not too bad with a little thought.