I agree, AWS is way too expensive. In fact you have a good point which is that the cost of compute on AWS is significantly higher, such that the relative cost of IPs isn't as significant. You can get a solid VPS from Hetzner for the cost of an AWS IP address.
I don't feel it would be right to just give you an answer after chasing yours 11 messages deep and finally having to make it up myself. I don't have the kind of emotional energy it takes to communicate with you.
What's your preferred provider?