How do you store and utilize your knowledge?

Hey all, feel like there are so much information to consume and catchup with the world rn. So curious how do more experienced people here do to actually store and make use of information in this modern era? What do you use to consolidate, store and easily access them when necessary?

I'm looking into AI second brain options that allow me to ask it to retrieve info when needed. I've been trying tools like notebooklm, tana, saner, but always open to learning more about your methods and recs. Thanks