The relevance of the data model strategy and the considerations involved depends on your specific use case and queries. Developing an effective data model is a business-oriented task that requires careful analysis and thoughtful decision-making.
You can use the following guides:
https://aka.ms/learnlive-azure-cosmosdb-cert-Ep17
https://learn.microsoft.com/en-us/azure/cosmos-db/nosql/modeling-data
https://learn.microsoft.com/en-us/azure/cosmos-db/nosql/model-partition-example