AWS API Gateway
The AWS API Gateway is a managed service that provides for a L7 reverse proxy, SSL termination, Authentication - it works with a WAF.
The Azure Application Gateway https://docs.microsoft.com/en-us/azure/architecture/microservices/design/gateway is a managed load balancer that provides for a L7 reverse proxy, SSL termination and WAF functionality.
Azure API Management works with the Azure AG to publish API specifications
Kubernetes Ingress Controller
Envoy Kubernetes API Gateway