I'll start with Suslov :among-drip:, who brings workplace democracy and affirmative action for women whilst also maintaining party discipline. He's nice in that he tows the line between being literally red fash and wholesome chungus utopian with zero regard for the material conditions of Russia - others like Kaganovich are too far in the 'red fash' direction whilst Bukharina and Men are too utopian. He also has the best portrait.
I've only done the West Russian Revolutionary Front so far, it was pretty fun. I did it as Tukhachevsky, so I feel like I need to go back and do it as Zhukov now lol