Check this out, it's a reiteration of NUSGrabberGUI, but with most issues fixed. https://gbatemp.net/threads/download-the-new-nusgrabbergui.411228/
I know it. It's using NusGrabber from crediar, opposed to LibWiiSharp (U_Wizard also uses LibWiiSharp). Honestly it has a lot of advantages over NusGrabber since you have a lot more native support and control over what your program actually does (It's a lot harder to implement at first and get used to). This is why I said that I might implement an alternative mode which uses NusGrabber and a setting somewhere to switch bewteen them.
Edit: Just like Voxel Studios said, nothing really similar.