Good residential (potentially) proxy

Hey guys

I'm searching for some proxies with which I'll be scanning a domain list of like 10 millon domains. Do you know of any providers which aren't banned from about every singe hosting provider there is? I was using webshare datacenter ones but can't access about like 25% of the websites with it and don't want to try their residentials since they're expensive.

If you can come up recommendations from personal experience I'd be really glad

I've been using Proxy-seller ever since 911 was shutdown. Pretty decent service, good prices as well. https://proxy-seller.com/

Also checkout PIA S5 Proxy.