I have not been running VMs on Azure before, more on other places, though since this company is using Azure I dont have a choice and find the "tiers" a bit confusing.

In general I need 3 VMs

1. This runs simple services like web proxy and mqtt (quite high load on MQTT), though most load is network as in protocols like MQTT. All services are in docker
2. This runs a set of .NET 8 applications that is type with a postgres that get updated about 200 times a minute 24/7, so thats the barely minimum, the other applications are a .NET API (that uses the same db) and some frontend stuff.
3. A dev/stage version of 2.

I was starting to look at the Standard D2ads v5, but I do have a feeling this is kinda overkill for whats expected. Its not expected to be many users, more just the internal load of sorting a lot of data, but nothing that need millisecond precision.

Cause of the cost factor that it seems rank up fast on Azure vs other "VM" providers can someone suggest a cost effective tier for the 3 scenarios? I would assume the database got the absolute highest requirement for a fast disk, where mqtt is more memory intensive (but we are not talking about more than maybe 3-5000 parameters pr minute).