The HI-METAL R Blader figure from Techno Police 21C is dirt cheap these days and oh so damn worth it.
It feels like the designers thought "This might be the only time we're ever gonna make a new fig of this character in the next decades so let's make it the best figure it could be".
Posability is insane to the point where even the neck alone has four points of articualtion and all the thrusters are movable and it just looks and feels great.
Only issue is the metal content that is mostly limited to the feet and hips.
https://www.amiami.com/eng/detail/?gcode=FIGURE-036222