A few but a search would no doubt turn up more:

Arc https://thebrowser.company/ - Perhaps not open source?

Orion https://browser.kagi.com/ - Mac only (built on webkit)

Vivaldi https://vivaldi.com/ - Chromium based

Opera https://www.opera.com/ - Chromium based

Ungoogled Chromium https://github.com/ungoogled-software/ungoogled-chromium