As far as I know, there are no residential proxy providers that may sell you static IPs from real ISP for an acceptable price (I know about Luminati, but their proxies are overpriced and they will make you pass KYC before buying). So if you try to use residential proxies with your bulk accounts, their IP address will rotate every 30 - 60 minutes or it will change with every new request to the website. Obviously the IP address rotation will lead to an account ban sooner or later. Dedicated proxies are also not the best variant because your IP address will simply lead to a Datacenter name after scanning. So which type of proxy is the best?