IDEs
Visual Studio
The go-to for Windows development and is pretty slick. Has the awesome "Edit and Continue".
Visual Studio Code
The free version of Studio and has many of the features of its elder sibling.
PyCharm
Obviously specialising in Python, essential for any slight serious Python dev.
Qt Developer
Actually pretty cool despite my aversion to becoming dependent on 3rd-party frameworks.
Code::Blocks
Linux option which feels pretty bad!