Ciao. Look at the idea below and if it's what you're looking for you could upvote for it.

https://communityhub.strava.com/ideas/create-a-public-link-to-share-all-your-created-routes-for-your-friends-add-more-options-to-search-into-them-8021

Hi ​@BirdyN, you can actually already do this - Strava has group events for this purpose: 

https://support.strava.com/hc/en-us/articles/216918607-Group-Events-for-Clubs

Hey ​@BirdyN 

Thank you for your post! I have changed it from an Idea to a Question. If one of the responses helped you/answered your question, feel free to mark it as the Best Answer so others can find it more easily.