I use librewolf just because it’s privacy focused.

But, there is also waterfox, floorp, and mercury, just off the top of my head.

Frankly they should probably split off the ad side from everything else.

Safari had its own web engine, WebKit, which chromium’s web engine, blink, is actually a fork of.

Opera Used to have it’s own web engine, presto, but they rebased to blink in 2013.

But yah, your options these days for the basis of your browser are basically WebKit(Apple), Gecko(Mozilla) and Blink(Google).

looks like you dropped opera about the same time it rebased to blink (chromium) from their own web engine, presto.

or even better, use librewolf.