There are 2 repositories under autopkg-recipes topic.
A kick ass tool for creating AutoPkg recipes.
AutoPkg recipes for deployment of Mac software via Jamf Pro, in use at ETH Zürich
Official recipes for AWS products for use by the Autopkg Community
For JGStew's AutoPkg Recipes and Processors
autopkg recipes created and maintained by Greg Reznik
Autopkg Recipes for the University of Edinburgh
AutoPkg recipes used for automatically updating software on the Managed Software Center