A short list of front end UI components that complies with Section 508;
Open source – Free ones
All of these are commercial, except few one offers free limited controls.
https://www.primefaces.org/
https://www.telerik.com/aspnet-core-ui
https://www.devexpress.com/
https://www.syncfusion.com/
https://www.infragistics.com/
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