I personally use Fennec (F-droid build of Firefox), it lets you swipe to switch tabs (like in iOS's Safari), and learning to press the tab overview button over swiping up wasn't too difficult. Using a Firefox-based browser also lets you use the many extensions that support Firefox for Android!
On desktop, I use standard Firefox, but you can also use one of the many forks
LibreWolf has extra privacy and security features, Waterfox has a few enhancements, Zen Browser has vertical tabs and only vertical tabs, Floorp is super customisable, etc.
I would advise you not to touch Opera and its browsers with a (insert preferred unit) long pole, they're even more shady than Google when it comes to privacy and data snorfing.