SAP HANA Enterprise Cloud (HEC): how to migrate to Microsoft Azure?

I once used Commvault. It can cross-backup and restore on a variety of platforms including Azure.

We have given Acronis Cyber Cloud Solution to most of our clients since it has the capability of any- to-any restoration and it can be achieved on any cloud. 

I have worked with AWS for 4 years now and I agree with the recommendation.  If you make some research AWS will be shown as the top solution in many white papers. We made an evaluation to compare it with Google and Azure. In our case, AWS is the most cost-effective. Depending on the solution you are running you need to check the license cost for your servers. If you have a lot of Windows solutions Azure may be a better fit.   Regarding performance, we did have an incident where the complete region was unreachable. So, make sure to consider recovery sites. 

I would like to recommend MS Azure to start with.  The reasons are: 1. I bet you're using many Microsoft tools, like Office 365, Team, etc. so you're pretty familiar with the MS UX which is excellent. 2. It's easy to start/learn Azure and configurations, they have very detailed documentation online. 3. It's relatively cheaper with Azure IaaS with good starting numbers of notes/services.