Guidescope to DSLR rig

Hey, I just ordered the ZWO Mini Finder-Guider and ASI 120MM-Mini bundle for my rig. I have a SWSA GTi with a Canon 2000D and a 75-300mm lens, mounted on a Vixen style dovetail plate. How can I attach the guidescope to my rig? I've seen some people attach it to the hotshoe with an adapter, but apparently it's not recommended.