[BrianT]

Delimiter's full-ha cloud gives you 250GB space, 1 CPU, 1GB RAM for $6/month.

You could add more CPU/more RAM for just a few pennies. Disk space scales to 50TB per disk quite cheaply.

https://cc.delimiter.com/cart/cloud-resource-pool/

Another option is ObjSpace (S3 compatible storage) but that would require you to run S3FS or similar. http://delimiter.com/objspace-object-storage/

[disclaimer I work for Delimiter]