Taking Social Proof Shots in London for Dating Apps

Infrequent poster here but have found a lot of good people through this community.

So I've made a lot of progress with picture taking but one photo I'm missing is a strong social shot and thought I'd try and organise it through here and get a few like minded people together to get this shot. I'm thinking of a rooftop bar drinks type shot but I'm open to other ideas.

Give me a shout if you are down, ideally doing it at the end of the month/early September.

Hi,
I'm in London, and could do this.
Don't know any decent rooftop bars tho.