"second level cloud provider, like Heroku", just newer and based on Kubernetes
softwareengineeringdaily.com/2021/12/07/render-with-anurag-goel
render.com
Render is a unified cloud to build and run all your apps and websites with free TLS certificates, a global CDN...
Make the most of 750 free compute hours each month with automatic scale-to-zero services.