Offerings for developer as add ons to Storyblok

I have Storyblok as a Headless CMS platform as my service, however I want to add other related tools or offerings that can complement Storyblok or Headless CMS.

My customer are web application developers.

Pls recommend these other offerings that I can bundled together as a Headless CMS provider. I want a diagram in ppt showing these offerings.