The best alternatives to Forma Sketch Library are Replacer UI Kit, Conversational Form, and BotUI. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Forma Sketch Library?
AssemblyAI— Multilingual Speech-to-Text API with superhuman accuracy
Easily turn any form element on a web page into a conversational form interface. It features conversational replacement of all input elements, reusable variables from previous questions and complete customization and control over the styling.