Hi. Choosing a good backend framework can be a real challenge for you these days. I had to go through this, so I already have some experience and I can tell you a few criteria that are incredibly important when choosing a backend framework. First of all you should pay attention to: -Convention vs Configuration -Performance / Speed -Community -Programming language
You can also learn about the best backend framework from this article https://impressit.io/blog/best-backend-frameworks . I hope my answer will help you and you will be able to choose the best backend framework for you.