MP-09 is a great Rodimus (the later reissues of it seems to have fixed earlier problems). Fanstoys Hoodlum is also a great choice if you want specifically Hot Rod. I also purchased a ko of MP-28 Hot Rodimus and it's an absolutely amazing figure. It's an exact copy of the official and the build quality is exceptionally good. I'd recommend that if you're on a budget. I purchased the ko MP-28 at the following website:
https://www.tfsafari.com/collections...21404414607473