I have migrated the project from Dot.Net-Framework 4.7.2 to Asp.Net-Core 3.1 with VB.NET language. I have checked in Microsoft link below, there is no CLI Command for VB.NET in Asp.Net Core templates. They mentioned only C# language for ASP.NET Core
https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-new
Kindly let me know if there is any way to create a ASP.NET Core Project in "VB.NET"

As far as I know, asp.net core couldn't create the MVC vb.net project. You could use
dotnet new --listto see the result:Besides, according to this github issue, ASP.NET Core Doesn't provide a razor syntax that supports VB.NET.
The workaround is using the custom library like Vazor and ZML to design MVC views and Razor Pages.
More details, you could refer to this github issue.