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Keyboard-Heatmap
Realtime Keyboard Heatmap showing the character distribution of texts - made with heatmap.js
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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.
Colemak is also very good for programming (and if you're programming you're writing in English), there's an interesting website where you can upload a large chunk of text that you've typed and it will show you a heat map of the keyboard, that will give you an idea on which layouts are good for the texts you usually type https://www.patrick-wied.at/projects/heatmap-keyboard/