The main Google services I use are Gmail, Android and Search. I would be mainly interested in replacing Gmail and tried (I have a personal domain with mail forw

The main Google services I use are Gmail, Android and Search. I would be mainly interested in replacing Gmail and tried (I have a personal domain with mail forwarded to Gmail). I use Gmail mainly because of its excellent spam blocking but also the Android experience is very good. I tried getting rid of Gmail last year but failed due to not finding a decent email client on Android that wasn't Gmail. Any suggestions? Please don't suggest K-9. For search I am now trying DuckDuckGo. I'm a mechanical engineer so will give this a few weeks to see if it affects my day to day fact finding.