You can do all of those things sans inhabit the same space with people you meet online. I met my 2 girlfriends online and we support each other through everything even though we aren't in the same place most of the time. I'm part of a niche group on reddit that supports each other emotionally in a way I've struggled to find in physical spaces. I still meet up with people in physical space, but I absolutely get meaningful social connection from online spaces.