@sociableCucumber4742 Ah! I made the edit for you. Typo came to mind, but the word dating wasn't clicking.
To me, it comes across a bit specific but I found local illness groups in general were lacking here.
If I were to start a group some basics - mostly in person or online?
Using an existing platform to set a group's info is easier. Then advertise across social media platforms and make use of existing groups to advertise too (if organizers allow) - muslim discussion forums, social groups, ditto for cfs/me/fatigue. Hopefully mosques can advertise your group too.
Once you get a group of interested people, host some fun social events, that can lead to more interest.
I hope it goes well!