Places to meet other travelers in Tokyo

I will be taking my first trip this may, from the 3rd through the 20th, I was wondering if there was a place where gaijin would meet up around tokyo, coming in from Minnesota and traveling alone, I am signed up for a pub crawl to meet people but have seen mixed reviews about it, just looking for a place to meet people mostly or if anybody would be traveling around the same time.

You could stay in Hostels, they usually have a common room where you could meet people from all over the world. The one I stayed at Asakusa Smiles had a bar where I meet locals and travelers from all over the world. I recommend this.

Other ways could be going to Roppongi bar hopping and maybe also joining the Free Tokyo Walking Tour you could also maybe meet new people during the tour. https://www.facebook.com/TokyoFWT

Hope this helps!
Have Fun!!!