You can push your music to the Scouts up to three times per release you make on Spinnup. So do your research and only push to the Scouts you’re suited to. Read their Scout profiles and take note of the genres they are particularly looking for to see if they are right for you.
To push to a Scout login to your artist account and go to the Scouts section of your artist account in the left menu. Select the Scout you want to push to and then at the bottom of their profile will be a dropdown menu of your releases to choose which release you would like to push to them.