The best relationships I have in crypto come from the forums, I've been part of the community for years and even with so many social networks, the forum is still the place I frequent the most
Nowadays, speaking only of crypto, it's very easy to network through X or Discord, these two social networks are very strong for those who need to find partners for any type of project, LinkedIn ia a great tool also, but I don't use it
It's also interesting to note that for all the risks of being a crypto user in the real world, you can easily network and be anonymous, having your privacy maintained, is a very good feature of the crypto world, and you can achieve here in this forum for example