Arbusers

example: I believe that here in Brazil the 2 main bookies that lead the market liquidity are: Bet365 and Pinnacle

When the odds on these houses are dropped a lot, secondary houses tend to follow later, thus allowing us the edge of dropping odds

I believe that for most countries it is also Bet365 + Pinnacle, but it would be interesting to see if there are any alternative bookies that are relevant to liquidity in any specific region