Historical arms & armor Youtubers such as Skallagrim, Metatron, etc.
Tons of information regarding historical weapons & armor (with the occasional spotlight for more obscure types of stuff) but generally attracts a pretty reactionary community. (My guess as to why this kind of stuff attract reactionaries is probably because most of them tend to fetishize traditions & ye olde days rather than critically analyze them out of genuine interest. For instance, the Middle Ages are particularly interesting to me (especially the combat related stuff) but I sure as hell wouldn't want to live in those times.)