If you use GoLand 2018.1+ you should be able to use the Run | Attach to Local Process feature and it will allow you to debug a running binary.
I suggest that you compile the binary with all the optimizations turned off and compiled with Go 1.10+ in order to get the best debugging experience.
Furthermore, the IDE can launch the binary and debug it in a single click, removing the need to perform multiple steps.
One last issue that I can mention is that you currently will not be able to correctly debug Go apps via Delve, so regardless of which editor you use, due to a bug introduced by Apple in the latest developer tools. For more information please see the issue on our tracker: https://youtrack.jetbrains.com/issue/GO-5527 and on Delve's tracker: https://github.com/derekparker/delve/issues/1165
Edit:
The issue mentioned above was resolved in GoLand 2018.1.1.