What about https://www.kiaevforums.com/?
As you can see it's a kind of niche forum for EV made by Kia, but there are several of these niche forums.
Most often they're not very crowded, but I like them being more calm than some other places on the internet.

I have some more of these, but they are really only helpful/interesting, if you fit into that niche and in that case you'll find them easily through search engines.