Revolutionary heroes ranging from John Brown to Kim Il-Sung are isekai'd to a fantasy world that parodies shows like 'the rising of the shield hero' to break the chains of slavery in all forms once more and liberate the fantasy workers and the peasants from the yoke of feudal oppression while hunting down so-called "heroes" summoned by the feudal lords who intend to use them as tools to preserve their power and the economic base of their feudalistic slave economy.
Show me Stalin riding a chocobo or some shit leading a calvary charge against slaver caravans!
Show me Marx, Engels, and Lenin working together in the cities inspiring the proto-proletariate to take up arms against the feudal robber-barons and their land-leechs that bleed them dry
Show me Mao, Tito, and bonus character Jan Žižka, on a rural bro-venture with the three in a competitive rivalry to see who can organize the greatest peasant rebellion between the three!
Yeah, it's one of my favourites. Not really socialist, but it is a revolution story, and it's a damn sight better than the genre usually is.
Unfortunately I don't, most of the ones I've found are either unfinished and not super promising, very specific to its source material and requires previous knowledge of that existing universe, or... obviously written by someone who is not a socialist and is making fun of the Soviet Union. I'll go through my history and bookmarks on my favourite sites when I have some time and see if there's anything I'd actually recommend to my fellow tankies in there, though.
I love slop webnovels, gimme some even if it's trash.
One that I've been reading is From Londoner To Lord, which bills itself as a modern engineer fixing an extremely low fantasy medieval world. It never actually mentions the big scary c word, but all the most impactful things he does are basically what immediately post revolutionary communist governments reforming agrarian societies do. Abolishing slavery, arming women, doing land reform, introducing universal child education and an adult literacy program, building public housing and starting public food distribution.