I use Amino, but it's an app (though you can use Bluestacks as an emulator and get it on your computer) focused on creating communities and socializing. It's my favorite out of everything else, since it's for people to discuss and interact with each other in real time, and it seems as if all the supernaturally inclined people went there. Tumblr is too chaotic to use without blocking the entire site and hiding (there are some blogs there, but from what I know they get hate almost constantly) and while Instagram does have a community, it's more for picture format posts, so if you don't have pictures to add constantly it's hard to discuss things with people.
There is Discord; I am a part of one or two servers for those who believe in the supernatural (more specifically, shifters), but you have to find an active server to even use it (if you don't want to create your own), and one or two active forums I visit that haven't died out from the switch to social media.
