It's tricky to find a a good proxy site for streaming. Unfortunately, most free proxies limit your data usage, so you won't be able to watch videos in high-quality definition.
It's even more difficult if you want to access subscription-based services like Netflix. As soon as you try to access these sites using a free proxy, it doesn’t take the streaming platform long to figure out that you’re spoofing your real IP address. In my experience, only the best VPNs have the technology and resources to unblock streaming sites (like Netflix US).