How do you manage resources like links, PDFs, and videos?

I've found myself in need of a better way to organize resources like links, PDFs, and videos—a place to "dump" everything and be able to search or filter it later in a smart and productive way. I’ve seen all the hype around tools like Notion or Obsidian, and while they seem powerful, I’ve never been a fan. To be honest, they feel overwhelming to me.

Historically, I've gotten by with simple notes in my phone’s default app or a notes.txt on my computer. It’s low effort, and for the most part, it’s worked. But now that I’m juggling more resources, I could use something more organized, ideally a tool that could categorize, tag, and organize content intelligently without needing a ton of manual input.

I know there are ways to do this in Notion or Obsidian, but the setup requires a lot of curating and cognitive effort. That might be fine if I’m studying something in-depth, but at the moment, I just need a straightforward way to manage resources with minimal upkeep. A system that automatically tags, categorizes, and makes everything searchable by topic, subtopic, or type would be ideal.

Does a tool like this even exist? With so much advancement in tech, I figure something might be out there that does this intuitively. I’d love to hear what others are using and whether any tools have solved this problem for you.