UI prototyping is the best way to visualise & communicate your idea.
My recommendation when UI prototyping is not to worry about the detail or look & feel at the start of your development, that will come later.
I use UX Pin for most UI & system design work, Uxpin also offers code MUI which you can upload react components…but that moving into advanced levels.
Especially if you’re building a minimum viable product MVP it’s all about the basics. Think wireframing once you have the basic framework this will then help to move forward with the details.
UI prototyping will help you communicate with your development team & scoping your project planning.