My favorite Gemini is the MX-2200 / PMX-2200 (same with replaceable crossfader and Jazzy Jeff signature). Would be a pretty cool mixer for a sampling setup actually.

Some people have done mods on these and installed up to date faders.
This was my favorite from the 90s and there's always a chance I might grab one:

This was another popular 90s model, before Numark became low end gear:

This was big in the mid to late 80s:

The DMC mixer was popular for a while with competition DJs:

Vestax PMC-05 was popular from mid-90s onward and still is to some extent. Pioneers grew in popularity in the late 90s and early 2000s. The Rane TTM-56 came in later and is the current favorite.
Club mixers like the Bozaks weren't really for Hip-Hop DJs and if you had to play on one it was frustrating, even if you had the Rane mixers back then with the long faders that felt like they were lubricated with honey.
Vestax was the first company to figure out what scratch DJs really needed while the rest of the companies pretended they were not profitable, or maybe they just loved selling crossfader replacements.