Question: what are niche dating sites?
Answer: Wingman. "Wingman is an app that makes flying suck less," reads this dating app for air travellers. ... 
Gluten-Free Singles. Gluten-Free Singles does what it says on the tin. ... 
Tindog. ... 
Bristlr. ... 
Singld Out. ... 
Salad Match. ... 
Farmers Only. ... 
Sizzl.