I save the few most important ones in Firefox's bookmarks bar (usually links to references of the APIs I use most often.) I have a ton of other bookmarks in the bookmarks menu but I don't open it anymore.

I started to share web pages to Telegram's Saved Messages which is synced to every device of mine. Then I search in that conversation. Not very organized but convenient enough. I also don't need an extra account (eg Firefox) or self host (Firefox has a sync server) and it works cross browsers and cross OSes.

I also keep about 100 tabs open on my phone's Firefox. They are a kind of bookmarks storage too :-)