I've been sourcing more than 3 years+ in online arbitrage process also do some wholesale process ungating managing the account / stock / optimizing listings in EU based + doing some sourcing also in ----------- on past 15 months. Moreover, I have great background on using the tools and it's process. Keepa for sourcing deals and A2A EU. These are the tools that I've been using on the past: Azin sin / az insight , OS stock addon , KEEPA , Scan unlimited , Buybot pro , trust pilot , vpn , DS AMAZON QUICK VIEW, Profitpath IP alert extension and many more.