Suggestion: any good cafe / public working space to hold informal meetings?

I'm looking for places where hold informal meetings.

We sometime do a photoshoot with friends, and we'd like to find a space where, at the end of the day, show our shots to each other. Ideally, having a space that have a screen would be ideal, but for what I know the rental working space are usually very formal and cold. I'd love to find something more cozy/friendly instead.

Also there is the trouble of space. If we're 6-10 peoples, find a cafe large enough is quite tricky.

Any suggestions?