Ecosia

Tl;dr: Ecosia is a good search engine which is very transparent and FUNDS environment NGOs

Pros:

1. It's search results are good enough for me to stop using Qwant and Google
2. It funds NGOs around the world which are planting trees and others
3. It is REALLY TRANSPARENT with what they do with the money they earn (They have a blog which shows a demographic of their finances and where they are goin
4. It is clean

Cons:

1. No appearance customisation (I doubt any search engine has this anyway so this can be shrugged off)

[Edited by JustanotherMalaysian, September 18]

After using it for a while now, I want to update this review as there are more cons that I've found with the search engine (but not really enough to change my ratings:

1. Search results can be slow sometimes. The results are a bit unreliable compared to other search engines (which isn't really a surprise). This might turn off some people who want their results quick.

Whilst it is very committed to it's environmental cause which is a huge appeal for many, I have my doubts it wants to protect your privacy and be not like Big Tech since there's a huge slew of evidence that it has clear ties to it. Yes, tracking is minimal, but it's a clear mirror for Microsoft's invasive Bing engine as it retrieves the exact same results from it, and it's data retrieval coming from several Microsoft and Bing domains based on uBlockOrigin filters. Microsoft even has a stake in some of the revenue that Ecosia makes, and data like IP addresses and search terms used in Ecosia are even forwarded off to either Microsoft and Google. It has also been hosted on various invasive cloud service providers, from Amazon Web Services to now Cloudflare.