Looking for Lightswitch replacement. Any good Rapid Application Development / Line of Business frameworks?

I started rolling out Lightswitch applications a few years ago for self-contained CRUD tweakbox  applications. The first few were Silverlight c  tutuapp lients, but several have been HTML5 clients. Some executives at work just found out that Lightswitch won't be supported in the future and are discouraging any new development using Lightswitch. Are there any good alternatives to Lightswitch out there?

Before Lightswitch, when I needed a quick and dirty UI for a CRUD application I would throw together some Access  forms with links to a SQL Server database. Generally this worked fine for literally over a decade but required quite a bit of development and compromise before the users were satisfied. appvalley