Found a cool Future History subreddit tonight: https://www.reddit.com/r/FutureWhatIf/
And it looks like there's a somewhat less active AH one:
https://www.reddit.com/r/HistoryWhatIf/
And a much bigger one:
https://www.reddit.com/r/AlternateHistory
And a similarly big and old one but also less active:
https://www.reddit.com/r/althistory/
Also a bunch more:
/r/HistoryNetwork
/r/whatif
/r/AskHistorians
/r/counterfactuals
/r/TimeTravelWhatIf
/r/PoliticalWhatIf
/r/SportsWhatIf
So this is cool, looks like the online AH community is all over the place
And it looks like there's a somewhat less active AH one:
https://www.reddit.com/r/HistoryWhatIf/
And a much bigger one:
https://www.reddit.com/r/AlternateHistory
And a similarly big and old one but also less active:
https://www.reddit.com/r/althistory/
Also a bunch more:
/r/HistoryNetwork
/r/whatif
/r/AskHistorians
/r/counterfactuals
/r/TimeTravelWhatIf
/r/PoliticalWhatIf
/r/SportsWhatIf
So this is cool, looks like the online AH community is all over the place