This is a huge topic. I think Chromium and Firefox are the most mainstream secure browser choices, but then again, it depends on the user. As mentioned above, there are forks, such as the Brave browser that is built with security out of the box, but may be limited in some features as it is relatively new.
My preferred way of staying secure is to use a VPN + Firefox + Mailfence (email/contacts/calendar), no google/Facebook/Microsoft or any other spying corporate entity and their apps/etc. That should keep you pretty anonymous and secure for the web.
You mentioned “silent” so I assume you are talking about decentralized, darkweb, etc. You can check out Freenet, Tor Browser, i2P.