- If you want "personal storage" (no programmatic access) the options are generally around $5 per TB/month - but that's a lot of drag-and-dropping and praying the connection doesn't die during transfer.
- If you want object storage (think S3) the cheapest is $5 per TB/month, the average is $10 per TB/month, and the "high end" is $20 per TB/month, with extra costs for bandwidth ranging from $10 to $120 per TB/month.
Honestly, just store less crap. Marie Condo your digital life. Does it not spark joy? Have you not looked at it in the last 6 months? Does it not serve a useful purpose, such as tax records? Ditch it.
Even if you want to keep some pictures/video, either print a copy in original-quality, or compress/downscale it. I took a 3 minute video on my phone and it's 425MB. And it was still grainy! I used to download two-hour movies that were 725MB and looked like a DVD! errrrrrr... I mean, I heard about a guy that did that.