The latest canary build of the Chrome includes a new flag named Tab Groups Auto Create. Open Chrome browser and type chrome://flags#tab-groups-auto-create in the address bar to check it out.
Hold the CTRL button and click on a link on a web site. Chrome will automatically create a group for this web site's domain, and include all open tabs with that site to this group. More details: https://winaero.com/blog/chrome-will-...