Session buddy was a big one for me in college when I had an overwhelming number of tabs open but didn't want to forget about what was on them. Basically just archives all your open tabs to a single page you can refine and look back at, so you can quickly just close everything and start fresh without actually losing anything meaningful or cluttering up your bookmarks.

The marvellous suspender helped prevent those tabs from using so much memory. Chrome hogs enough memory as it is lol.

I have one called tab manager plus which looks handy but I honestly forgot it was there before I ever actually used it lol

Sorry for the extremely late reply. But anyways, I use Auto Tab Discard - Frees up ram with unused tabs

Sideberry - a vertical option to organize and search tabs with a overwhelming plethora of options

Tab Session Manager - To make sure I don't lose my tabs if my browser crashes

Tab Stash - to hide away bundles of tabs so I can sort through them later

Window Titler - To name my different windows I have open in order to keep things organized on my windows toolbar. I use the old school windows toolbar layout which has text beside the icon. I like it this way instead of going through little popup windows to sort through my shit.