So what I do day to day: 
Brave browser has a search tabs function, at least on mobile. I make tons of use out of that. 

What I do from time to time (more seldom than I should):
Go through all my tabs, close ones I really no longer need (always surprised how many of those there are), and send the URLs of the rest to myself in Signal. 

I miss having a really good bookmarks system, but lost momentum a couple computers ago; besides, I now have three devices to coordinate across, and I like being able to use Signal’s searchable Note to Self on all of them.