Give BrainTool a look. Its designed to address tab hoarding by making it easy to file and close out tabs and tab groups and then re-find them with search and hierarchy and notes. Associated keyboard commands make it easy to open/close and navigate tabs as a group (eg open a tabgroup with all tabs for a given topic). Everything can be synced to a plan text file. (Disclaimer, I'm the developer, but also a user!)

[0] https://braintool.org