We do our best to have as many connectors as possible that will serve the needs of the many. Unfortunately, we can't add new connectors on a whim - adding support for a new cloud service can take a lot of resources (mostly time and coffee).
Some cloud services offer FTP, SFTP, or WebDAV support, so it's a good first step to look into that - you may still be able to use Mover to connect to it via one of those methods.
See below for an extensive (but not exhaustive) list of popular services we've had support requests for, including ones we've retired support for:
|Amazon Cloud Drive||Website→|
|Amazon Glacier||Website→||Via Amazon S3|
|Email (IMAP, POP3, etc.)||No Website||Under Review|