You don’t have dive clubs in your local shops?I wish we had something like the BSAC system here in the US. GUE has been criticized as "clubby," but there are few options for those who like the idea of learning from mentors and participating in diving activities with people you know.
Here many of the PADI/SSI/SDI shops provide a local club so you can meet like minded divers. They usually use this to sell trips or market their classes too.
Most of them offer membership for free or a very low cost (usually that’d give you access to their training pool)
One of my local SDI TDI instructor run a technical diving FB group so you can meet like minded divers for example.