Personal favorite: Bitwarden, It just works really well without issues and the free version is more than enough for a regular usage. And if you do NOT trust the company or you want the premium features without paying for them then you can self host it for yourself! Another great password manager is Keepass!
DDG was good option when it came first. But these days I do not like the path they’re taking. And I wouldn’t recommend anyone caring about privacy and censorship to use it either.
Searx is the best option as of now. And I recommend this instance with some little bit of preference modification.
Our South Asian comrades are gonna face the worse
Have you tried K9Mail yet?
Session is a pretty good one in my opinion. Also matrix has some privacy related concerns with the amount of meta data being shared on every home server.