JetBrains Rider

Excellent IDE, this link goes over the major points, will point out that the big difference to me between Rider and Visual Studio is the debugger immediate window where you can evaluate code snippets while debugging.  While Rider can evaluate expressions it is not as natural and fully fledged and I find myself constantly wanting to hit a breakpoint and evaluate some variable statement.

Rider is uses less memory and rarely crashes unlike Visual Studio so I will continue to use it instead of Visual Studio for the foreseeable future.