What are you using to organize all the research that you are doing for your newsletter?

I am thinking of starting a newsletter and have been exploring a few ideas, and now I have like gazillion tabs open. I am finding it hard to be organized. I am using notion to save some of these links but I don't have a good enough framework to make sense of the data I am collecting there either. I was using pinboard.in 10 or so years ago but haven't used a booking marking app in a while because if it out of sight, it is out of mind for me. How is everyone solving this problem. Would appreciate any insights! thanks!