Apart from the obvious online options (and I really suspect that they are maybe the most common nowadays -- and with some positive things going for them, for all we moan) I don't think there's a *place* you meet other guys. I'd more say, based on the guys I know who are good at this (not me!) that it's more about the way you do it.
The successful manhunter is always looking to add to his collection--and not only guys he wants to sleep with, but just guys he likes, because having a big circle of (gay) friends increases the opportunities to meet other gay guys, and to be part of that "little circle of friends". These guys aren't shy, and they don't wait to meet someone a second time. When they meet someone they have even a modicum of interest in, they suggest they should meet for a drink (or, in your case, a coffee ...) or find some common interest, however flimsy, and they get their number. And if there's any sort of sexual attraction, they are ready to go with it.
Gay guys are everywhere, at least if you are in a decent sized city. You will encounter them at parties, at work events, at the gym (yes), in all sorts of non-gay environments. The more of them you know socially, the more you encounter in other ways. The key thing (which I stress I more observe in others than do myself) is not to be too diffident. If you're a decent guy and you keep it casual, and you lay on a little flattery, and you don't try it with total strangers, you will gradually build up a circle of friends and acquaintances which produces the necessary critical mass.
In other words, the big difference between those who end up with a big circle of friends and lovers and the rest of us who don't is not so much where they go as their willingness to "close the deal" quickly. No pretence at disinterest. No waiting for the other guy to make a move. No waiting for a second meeting. Just get it done.