I can recommend Tricentis NeoLoad as an alternative tool when the part of Microsoft, especially if one does not have the budget ready to go for the others.
Tricentis NeoLoad is a versatile performance testing tool that reduces scripting time and integrates with Jenkins and AppDynamics, providing excellent API support. Its flexible licensing suits various budgets, and it offers cost-effective testing with parallel request execution and load management from diverse geographies. However, limitations include restricted protocol support, stability issues, complex tool integration requiring extra installations, poor technical support, and mismanaged license handling after changes in ownership.
