Hi @jgrowteam
After reading this article on the development forum: Setting Root Domain Redirect from Cloudflare to HubSpot Subdomain a client of ours was able to redirect both the http and https root domains to HubSpot using Cloudflares page rules.
I was not involved directly in the configuration so, unfortunatly, I do not have any more detailed information to share, but hopefully this points you in the right direction.
Hope this helps.