Microsoft has posted some great content on .Net Application Architecture. This is similar to now stopped Microsoft Patterns and Practices guidance on architecting enterprise application using .Net stack or in general best practices guides to design solutions.
.Net Application Architecture is reincarnation of Microsoft Patterns and Practices where you can find some guides on building modern solutions using new patterns, frameworks, techniques and workflows like
- Building Docker Applications,
- Azure Cloud ready applications
- Modernizing Full .Net Framework apps to cross platform .Net Core apps
- Xamarin Mobile Apps
These new design guides are extensive. You can download these guides along with a sample app to test new patterns
Go to: https://www.microsoft.com/net/learn/architecture
Enjoy!