I’ve hit this exact issue with small projects, each app ends up needing its own DB. It is very hard to predict and calculate the usage in the provider's CU (I mainly used Azure and AWS).

I tried a few approaches: sharing one DB with schemas (gets messy over time), spinning things up/down (breaks things unpredictably), just paying and forgetting about it (feels wasteful).

Still haven’t found a setup that feels right for multiple small apps.

Did you come up with something?