The visibility, budget control and recommendations will be far beyond what cloud providers give you out of the box.
https://www.duckbillgroup.com/
https://www.vantage.sh/
They mostly do everything you describe and more.
Cloudability is one.
Can you please mention a few of them that are good options in your view?
Also, clearly nothing has been good enough that everyone knows about it or uses it.
https://www.duckbillgroup.com/
https://www.vantage.sh/