We use both Azure and AWS at work. Azure is less expensive. But it’s also like comparing a corner 7-11 to a city-sized shopping mall. AWS is freaking huge and they add new services every week it seems. It’s kind of overwhelming.
There’s also Google Cloud and IBM and Oracle but they all suck for the same reasons AWS and Azure suck.
You might want to look into Alibaba Cloud, Digital Ocean, and/or Linode/Akamai.
I’ve been impressed with Fastmail. I also use Tuta, which is pretty cool (but I barely use it).