How to choose a reliable free proxy server?

I'm looking for a free proxy server to bypass blockades and increase anonymity on the Internet. I came across a lot of options, but I don't know how to choose a reliable one. What is important to consider when choosing such a server?

For anyone looking to find a reliable free proxy server list, I came across a great resource that might be just what you need. This site provides a comprehensive list of free proxies, which can be really handy if you’re trying to stay anonymous or access restricted content. You can check it out here: https://gologin.com/free-proxy/