There is a GitHub repo[1] with a very limited list last time I checked. That the best I could fined in my degoogled time.
The Techlore Youtube-Channel-Community (yes, I realise the irony) also seems like a reasonably healthy place to start.
There is also a bunch of telegram groups with NoGoolag[2] at the center. I would not recommend for the 70:30 mix of conspiracy and tech support but they are at least technically very knowledgeabl, and sometimes helpful, even considering their almost 'religious' technical beliefs.