Here's the original version from the 1960s.
ledlecreeper27
Try to hold a new party congress and make Ligachov gensec, put future GKChP members in top positions of power, purge Yakovlev and Shevardnadze and make sure Yeltsin stays out of power. Rehabilitate Stalin and require all Politburo members to prove they understand Marxism.
Hakim, Deprogram, Rev Left Radio, BreakThrough News, DPRK Explained
On Contradiction and On Practice
Fight Back News, BreakThrough News, Red Nation, Black Power Media, Geopolitical Economy Report. A lot of them also have videos on TankieTube in case the YouTube ones get taken down.
"Other instances" could be referring to lemmy.world and other very liberal instances.
You can also find a lot of communist books on online libraries like Libgen, Anna's Archive, and archive.org.
The Law of the Soviet State and Russian Justice for the Soviet legal system and a chapter of Peoples' Democracies about the Mindszenty trial and legal systems in other Warsaw Pact countries.
Wikipedia puts Dessalines and Stalin in the "genocide perpetrators" category but not Washington, and Andrew Jackson is only there if you look through four levels of subcategories.
Most parties have a candidate period when you first join where they teach you things, but you can also learn a lot by reading (or listening to audiobooks/podcasts/videos) beforehand.
Join whichever party is active where you live and study theory and history.
The Lesson of Germany (covers from about 1520 to 1945)