Two ways to go: easy (let us run it for you) or advanced (pick outlets yourself).
Easy: Packages
If you'd rather hand us a Spotify link and let us handle the campaign end-to-end, head to submithub.com/packages. Pick a package, give us the link, and we take care of targeting and outlet selection for you.
Advanced: pick outlets yourself
Click "Promote a song" in the menu (or head straight to submithub.com/submit):
Either way, this creates a campaign you can track from your SubmitHub homepage: each song you've submitted is listed there, and clicking one opens its full results. See the "Submitting to influencers" and "Who should I submit to?" articles for more detail on each route.