The entire alt-tech sphere, I guess, but other than that I can't really think of many projects that explicitly say they lean right or left. As far as I can tell, most projects focus on working on whatever they're trying to accomplish and don't mention their political opinions for whatever reason, maybe because they don't want to alienate their users and contributors or maybe because they are made by many people, each with their own opinions, and there isn't a single shared belief system behind it, like ThePirateBay for example. We can try to infer what political stance someone holds, like the CEO of Brave, for example, who donated some money to an anti-gay marriage bill in 2008, or the CEO of Proton, who said some positive things about the Republican party recently, but I don't think it's fair to assign a political affiliation to the entire project because some of the team members expressed their opinions.

Are you sure? most people working on projects against big tech tend to be very left leaning.

I think that you make a mistake and assume that just because someone agrees with you on not wanting to be reliant on big tech, they also agree with you on everything else, or you read something like

We want to advance human rights and freedoms by creating and deploying free and open source anonymity and privacy technologies, supporting their unrestricted availability and use, and furthering their scientific and popular understanding

and falsely assign that to be a left-wing stance, when in reality most people, left or right, would support that. I haven't seen any evidence that most people working on anti big tech projects are left-leaning. Most people don't publicly share their political beliefs.