So I work extensively in Boo Boo land these days and carved out a niche in the sub 100k fix and flip that no one wants to do for better or worse these markets are pretty much dominated by wholesalers.. but what you see or what I see on the huds is in each market I work I and I work 7 markets. there is maybe one or two recurring wholesale companies where I can say the owner is making significant income probably 300 to 500k net a year maybe more maybe a little less.. then you have all the others who come and go and fade away.. 

A lot of flippers will lose money or hire ****** contractor to do work.In major cities, big players still developing and building.

Get out, Dominate, Conquer! 

I am thinking that the BIGGEST players are those you never hear about.They are quietly making a fortune in their corner taking over the world!

All markets are simply supply & demand + price discovery; a major player just moved to only one side of the market.

There are a lot of established players in the space that have reputations with wholesalers and cash to buy.  

There are some very strong players in this post.  

You just have to go to the auction and see who the players are. 

To @John Underwood's point, Airdna isn't entirely accurate but they usually come in on the low end so you can always use this as a baseline.Also go with any one of the vacation rental insurance providers he mentioned.Airbnb charges you 3% if you're a small-time host, or 15% if you're a bigger player.

Of course in most major cities in Texas buying these before and during foreclosure is dominated by a few big $$$ players