Like the idea of a Meet Up group, but nothing quite fits the bill? Try Travello. I haven't used this app yet, but am looking forward to giving it a go.
Basically, you create a profile and connect to your Instagram feed and Facebook. This allows you to search for travelers in your vicinity, direct message them within the app, and use their message board as your little community connector for deals and meet-ups. The Wifi-finder shows hotspots, in case you have issues with coverage or phone plans. If you've used this app, let me know what you think!
**A note of caution: While this app seems helpful and fun, remember to always be mindful of online and in-person security. Don't give away too much information, and always follow your gut.**