Qwant Vs Kagi Vs Ecosia

I have been using Qwant for some time, but I am not quite happy with it. Both the quality of the search results, and the lack of a paid option to get rid of advertisement are annoying to me.

I used to have Kagi as my main search engine, and liked it quite a lot. I know that a few people have personal issues with the owner, based on some blog post that gets shared every time, but my own reason for not using it currently, is because it is based in the US. I don't know if I am willing to compromise on that for the moment, but I do feel like I was getting a better experience using that.

I haven't used Ecosia for some time, and might give it a try, but I am still concerned about the ads. It's not that I fear that they track my searches, the same way Google did, but I just don't like ads. I don't mind paying but as far as I know Ecosia still does not allow for paid plans to avoid the ads.