joemutt:
I don't know which area you are in, etc. so I will just share my experience in general.
I met people in my city in 2008-2012 through the personals of poz.com; https://personals.poz.com some for dating, some for talking. There was a time (2004-2005) when I made a few friends on these boards that I then met in Bangkok and Amsterdam. I also found 2 support groups where most people became friends; one group I found through an announcement at a clinic. Also on gay dating apps I sometimes reached out to poz people; met some interesting people socially.
PozChilean:
If any of you need an online friend, I'm here for you.
elf:
Here in my country (I'm from Southern Europe) it is impossible to find another HIVpositive person, they're hiding. And all I got from HIVnegative people on apps like Grindr Tinder or Romeo was rejection and hate.