I want to build a ReactJS/Angular single-page application (SPA) that implements a multi-stage workflow, displays each stage in a sidebar panel, and presents detailed views of the selected stage in the main screen. This is my fun project so the focus is to build something functional first. Below, I detail my requirement

Requirements:

• A wizard-like flow presenting each stage as a tab within a sidebar
  panel.
• Clicking on a stage reveals the stage’s details in the main
  screen.
• Buttons or indicators allow stopping/pausing and proceeding
  to the next stage.
• Navigation arrows enable going back and forth
  between stages.

Despite efforts to find relevant templates and tutorials, I had limited success. Can anyone suggest resources (templates, tutorials, articles) helping to accomplish this task? A template would be a really good place to start and build on top of it. I found material UI templates close to my requirement.(https://mui.com/store/templates/) Many thanks in advance!
This video comes close – https://www.youtube.com/watch?v=CXmwYk5Hbig&t=497s