Then there's VcXrv[1] to share your clipboard between WSL and Windows, it also lets you run Linux GUI tools in WSL. Essential IMO, if only for clipboard sharing.
Sizer[2] is another great tool for quickly resizing and positioning windows programmatically. Amazingly useful for spinning up specific sets of apps quickly.
IrfanView[3] is IMO one of the best quick image viewers / editors. It also has handy dev features (batch processing, quickly getting a hex value from an image, etc.).
I keep a list of dev related tools I use on Windows too at https://nickjanetakis.com/blog/the-tools-i-use.
[0]: https://dexpot.de/?lang=en
[1]: https://sourceforge.net/projects/vcxsrv/