Thanks for your comment. Actually I've been thinking how to find the right pairs and the right routers to make our arbitrage lucrative. This is not easy job to do. I haven't done anything yet but you may create some indicators such as volatility, volumes and price slippage, etc to evaluate possible arbitrage markets out there.

Having a node could help for low latency for sure. If I were you, I would care about a server location. What is the dominance of BSC node locations? Is it in China? or US? You should have your server to run arbitrage in the closer location to that geographic location then you'll get low latency for your transaction to reach one of the nodes.