In AWS M4 instance type which slab should be choosed?

I Would Like to host my Ignition in cloud Server. I have chosen Vision, SQL Bridge, Tag Historian & Mobile Modules can any one suggest Which AWS Instance Should i Choose and what slab in those instance?

Thanks in Advance.

I can’t answer for AWS specifically, but for starter Ignition gateways running in a VM (Ubuntu Server 16.04), I generally allocate a couple VCPUs, 3GB ram, and 8GB storage. This assumes the DB is elsewhere, and the Mobile module is not installed. The mobile module substantially increases ram usage. A DB requires more storage.

Thanks Pturmal For your suggestion