After writing the Microsoft certification blog post, I have been asked a lot of questions about Azure certifications. I would recommend the below Azure certifications for Apps & Infrastructure focus.Azure_Certification_poster-1
Azure Solutions Architect Expert
Exam AZ-300: Microsoft Azure Architect Technologies
**A new version of the exam, AZ-303, became available on June 29, 2020. You will be able to take this exam until it retires on or around September 30, 2020.
Exam AZ-301: Microsoft Azure Architect Design
**A new version of this exam, AZ-304, became available on June 29, 2020. You will be able to take this exam until it retires on or around September 30, 2020.
This is a great learning site from Microsoft and all the content is free. You can even customize your learning path.
Here is a list of on-demand training companies.