You can use Tor (The Onion Router), open-source software that prevents traffic analysis and was initially developed for the U.S. Navy.
TOR offers a free network of servers (nodes), randomly routing traffic between each other, significantly increasing your anonymity. The best combination is to use it together with a VPN. Unfortunately, multiple nodes routing your traffic will impact the speed of your connection. Therefore, TOR is not convenient for streaming or sharing files.
Related article about VPN alternatives: What are the best VPN alternatives
What are the best VPN Alternatives
Another alternative to VPN is a Proxy service. Proxy plays the role of intermediary servers between your device and the destination. They are very popular but have a significant drawback: the latency and lack of privacy or security. As you can imagine, the most dangerous are free proxy services that tend to sell your data.