My favourite space to work from, the third space, is the YMCA. I've been a regular visitor to the YMCA for a long time and have attended many meetings there.
One of my core memories is that it was my go-to place when I was struggling to find the right niche. We had so many conversations and pitches with mentors and others around me. I think I spent a good six to eight months there, and it became a deep workspace for me when I was struggling.