There's all sorts of discords and message boards out there. Even the NEET Hikikomoris manage to get some form of online community going on. Been in those spaces.
All they talk about is anime, video games, and random memes (90% of the time) the occasional deep discussions on philosophy and the meaning of life (10%)... and the occasional rant on how much life sucks and it spirals into nihilism, efilism, anti natalism, and atheism, then the occasional Christian, Muslim, or Buddhist gets banned or voluntarily leaves.
Being alone with little to no friends ain't so bad. More time to meditate, enjoy nature, and draw my webtoon.