Searching for text in an Object watch window in visual studio

One suggestion would be to serialize the whole object and do a regex search on the serialized string.

Visual Studio 2019

This is now natively supported in Visual Studio 2019

Searching for objects and properties in the Watch, Autos, and Locals Window by Leslie Richardson

OZ Code

There is also a commercial Visual Studio Extension called OzCode which has lots of debugging experience enhancements including search: