There is nothing wrong with having many items. Tech is designed to scale. If your productivity apps can't keep up with your behavior, then it's time for an upgrade.
1. My saved items live in 100+ different silos. If they all lived in one place, say some kind of self-hosted personal data store, I probably would be less concerned. I've started to consolidate as much as I could into a handful of ecosystems (e.g., Pocket -> Keep, Dropbox -> Drive, Airtable -> Sheets, Todoist -> Tasks, RSS -> Gmail digest, Zoom -> Meet) and it seems to help a bit.
2. There is no easy way to organize, sort, prioritize, schedule, or even search for these items. Related items should be clustered together. Large items should be summarized and/or broken down. Urgent items should reach my inbox, be prioritized and scheduled. Popular and highly-rated items should rise to the top. Saved items should appear at the top of my Google search results. Without that, they might as well not exist.
1,000 individual services is at least 900 too many. Probably 990 too many.