BEST PROXY PROVIDERS
1.
LuxSocks.ru // They have the best residential clean proxies that you can categorize by country, state, and city. You can buy them out for 24hrs, and renew after that as well. Entry cost is $500 and the price per proxy varies. Here's the list from their website:
BUY fresh proxy, not black = 0.30 + 0.15 = 0.45
BUY fresh proxy, not black, score <1 = 0.30 + 0.15 + -0.10 = 0.35
BUY fresh proxy, not black = 0.90 + 0.15 = 1.05
BUY fresh proxy, black = (0.30 + 0.15) * 0.50 = 0.225
BUY fresh proxy, low risk (PBL) = (0.30 + 0.15) * 0.25 = 0.1125
BUY PROXY NOT BLACK = 0.30
BUY Proxy BLACK = 0.15
BUY PROXY low risk = 0,075
2.
Proxy.shop // Haven't personally used, but based off reviews of the service, the proxies typically last about an hour. They cost about $0.03 per proxy. You must deposit $75 to activate account, but it goes into your balance unlike LuxSocks. And like LuxSocks, you can categorize by country, state, and city.
3.
PremSocks.com // They categorize their proxies by "Country, City, State, Internet Service Provider and Hostname." Their daily package cost is pretty nice for what you're getting. If you purchase the 5 proxy a day for 30 days, each proxy is $0.1. That's assuming their quality is good, I haven't used them, so I wouldn't know.
4.
AnonSocks.us // Most likely using the API from Proxy.shop, but they're worth placing on the list because they don't require a large entry fee. This service, too, categorizes by country, state, and city. Their proxies cost about $0.15/proxy, but purchasing comes in packages. The first is $1.49 for 10 proxies. Their proxies are only good for one-time-uses. Some of them are extremely fast, and others are extremely slow.