Is there any AWS Transit Gateway Equivalent services in Azure?
Azure docs
Is this similar to Azure Firewall?
Is there any AWS Transit Gateway Equivalent services in Azure?
Azure docs
Is this similar to Azure Firewall?
Both are offering the same feature service to connect VPC/VNet of their cloud infrastructure and on-premise network site-to-site VPN. It will work as a central place to connect cloud networks and multiple on-premise networks located at different physical location/country using the cloud's own backbone infra.
Using this service customers can connect their various branch office/data center via Azure/AWS's backbone.
Azure Virtual WAN
I'm not familiar with AWS Transit Gateway enough, but maybe take a look at Azure Virtual WAN. https://learn.microsoft.com/en-us/azure/virtual-wan/virtual-wan-about
Azure Firewall is more of a security appliance than a connection appliance. You would still need a VPN Gateway (or ExR or Peering) to connect to remote networks. https://learn.microsoft.com/en-us/azure/firewall/tutorial-hybrid-ps
I believe the question is a bit too vague to provide an answer.
I dont think Azure has exactly same kind of offering but gateway transit for VNets peering is something that you might find useful
https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-peering-gateway-transit