There’s not a lot pertaining to Stalin, and OP knew this. Most things Stalin did was either innocuous, exaggerated, taken out of context, or outright lied about. Sometimes some of these elements overlap.
The gulag system sounds terrible until you realize that even the U.S. has prison slavery written into their constitution (not that I support either, but it’s silly to say that prison labor was exclusive to the USSR), collectivization plans in Ukraine were a good way to make sure Ukrainians wouldn’t have food troubles, The Holodomor was caused by kulaks burning their crops and slaughtering their livestock, and punishing prisoners of war (meaning literal Nazis) were justified since, you know, they were literal Nazis.
The “100 million” figure is also wildly inaccurate, and you only need to search up “the black book of communism debunked” to find out so.
