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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
For charts, I'd recommend charts.js or if you need more sophisticated visualizations d3js.
I would recommend Svelte as a JS framework. It's a minimalistic framework, you can use it for state management and reactivity. It doesn't do much, but that's its strength. It's like writing vanilla JS with just the right amount of framework-magic to make your life easier.
For charts, I'd recommend charts.js or if you need more sophisticated visualizations d3js.