Free united states proxy servers can be hit or miss. Some are decent for basic stuff, but a lot of them are slow or even inject ads into your traffic. If you're just browsing, maybe try HideMyAss free proxies—they’re okay. But for streaming or privacy, I’d say go paid. NordVPN’s proxy servers are solid and not too pricey.
Also, free ones often log your data, so if privacy matters, it’s worth spending a few bucks.
Also, free ones often log your data, so if privacy matters, it’s worth spending a few bucks.