The following are five great sites to utilize to find and use various Power Automate and PowerApp templates:
Power Automate Templates:
https://powerautomate.microsoft.com/en-us/templates/
Templates & Downloads:
https://resources.techcommunity.microsoft.com/templates-downloads/
Community App Samples:
https://powerusers.microsoft.com/t5/Community-App-Samples/bd-p/AppFeedbackGallery
Use Excel and Word templates:
https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/templates-overview
Create a cloud flow from a template in Power Automate:
https://docs.microsoft.com/en-us/power-automate/get-started-logic-template
Use flows in teams created from templates: