Does anyone know what the best female body to use with Classified figures is? besides Phicen?
If you're asking about scantily clad female bucks, I can't help you, but if you want options, the only female bodies that I know that are the same size as Classified females are the MCU female Marvel Legends & Indiana Jones Adventure Series females. Though, there are weird height variants common with Marvel legends, I know MCU Sharon Carter, Jane Foster, Black Widow, Hawkeye series Yelena Belova, Kate Bishop, Comic Mary Jane Watson and Retro Cardback Rogue are the same size figure. The larger female Marvel Legends neck pegs work on the earlier Classified female neck sockets but, the newer Classified neck sockets are smaller. The Indiana Jones AS females are identical height to Classified females and, the neck pegs are identical with the later Classified female neck pegs (Retro Scarlet, Glenda, and Quarrel).
The Hasbro Power Rangers Lightning Collection females and Star Wars Black Series females are scaled smaller than Classified so the heads will look small, though there are a couple PR Lightning heads that look proportionately okay. The BS & PR larger neck sockets work on early Classified females.
Action Force females are taller than Classified but look fine as taller females, Classified heads look too small on AF females, but okay with the AF heads on Classified. The AF neck pegs are compatible with early Classified female heads (same as Marvel Legends). There are some smaller Mattel WWE Elite/basic/Ultimate females that look in scale with Classified and some of the neck sockets are compatible. But it's a crap shoot, some are much taller like Action Force (Rhea Ripley), some are smaller sized and work with Classified like Alexa Bliss.
There's another work around with the neck peg issues, you can heat up and swap double barbell type neck pegs between Marvel Legends and Classified to get a better fit, I did that with a MCU Sprite neck peg and my Classified Chuckles neck to use the Marvel Legends Quasar head for my Chuckles. The neck peg length will vary quite a lot though so getting a good peg length/ball joint size combo is difficult. You have to trial and error with the parts in hand to figure it out.