A few weeks ago I did some research and started using the Toby tab manager plugin for Firefox and Chrome:
https://www.gettoby.com/I set up a "Frequent" tab group at the top, which has the pages that I often go to but that have weird URLs that I always struggle a little to find the right URL.
I really started using it for cross-machine tab parking. I always end up with a ton of tabs open across 2 chromebooks and my work machine, and "OneTab" helps, but has no ability to manage across multiple machines or browsers. With Toby I created sections for "Tooling Research", "General Work Research", "Logging and Monitoring", and individual projects that I seem to always want to get back to by leaving tabs open.
The down side is it takes a good 2 seconds when I hit "new tab" for it to load. I have been quite happy with it though.