I recommend looking over this extension:
https://marketplace.visualstudio.com/items?itemName=darkdaskin.tabpath

It adds path context whenever there are two files with the same name. The path is expanded backwards until the relative paths are different. This helps when parent folders have the same name. For example:

• BetaAuth/Pages/Index.cshtml

• UserManagement/Pages/Index.cshtml

Here is how it looks like: