Moving SQL to a hosted server
For 7GB to 9GB of database, I would advise you to just use backup and restore strategy. This is the most simplest and effective way of migrating small database. I highly recommend you look at dbatools to help you automate your migration (it also migrate your objects like logins). The most important part of your migration is you practice your rollback and making sure application/users can still connect to your database after migration. Always test before you go live.