Aren't they all Safari anyway?

Orion is my favorite

https://apps.apple.com/us/app/orion-browser-by-kagi/id1484498200

Choose the one you’re using on the desktop. Under the hood they’re all Safari but at least this way you can sync everything to your desktop.

Orion is the only other choice. And to be fair, Safari with content blockers works fine too; but obviously it’s not an in-built adblocker that you are specifically asking.

It's all Safari dude, they're all the same. I use Brave on iOS it works fine, blocks ads

Quetta have released their browser for iOS and ipadOs. Built in Ad blocker and private. Have used the Android version and it's really fast.

Safari, until apple’s stance on privacy worsens.

DuckDuckGo works fine for me, it checks most of your boxes. Not sure about the ad blocker, but I run a pi-hole on my home network so I don’t see most of them anyway.

Not an expert but Duck Duck Go browser is decent afaik. Happy to be corrected though. Brave browser is one I use a lot too but I think it has some AI stuff now, though I believe you can turn it off

Brave works really well for blocking on iOS. At least is has for me for quite some time. And Orion is another solid option. If I could get Floccus extension to work properly with Orion I'd probably switch completely.