Rainbow Railroad is a similar organisation that specialises in LGBT asylum claims.
Trans United Europe supports trans BPOC ( Black & People of Colour ) who live and work in Europe.
Aileen, travel blogger of iamaileen.com, maintains the The Ultimate Guide to Staying Longer in Europe - IamAileen.com.
NomadicMatt also has a guide on How To Legally Stay in Europe for More Than 90 Days.
This is a useful StackExchange thread on Schengen Hopping to extend your stay legally in Europe: StackExchange discussion on Schengen hopping
WiFi Tribe is a web community of digital nomads - People who have completely online jobs and travel around the world, living in many different countries. WiFi Tribe also maintains their Non-Schengen Countries for Digital Nomads - WiFi Tribe.