dependes on broadhead design really.
laskey knife sharpener is working well for me on all types of replaceable blade heads. staysharp guide worked well for qad exodus, but did not do well holding mechanical blades. neither would work on a 1 piece 3 blade head.
Nothing will beat a proper jig and then using various grits of sandpaper or ceramic stones, followed by metal buffing compound on cardboard or even a leather strop. They should be hair popping sharp and aside from shop placement, it makes all the difference in the world.
I would recommend a KME jig or an Innovative Outdoorsman. You can buy packs of wet sandpaper on Amazon, very inexpensively. Multiple sheets of the same grit that will allow you to sharpen broadheads for several years. Do not take a broadhead out of the package and put it on the end of your arrow without sharpening it with this method. Broadheads out of the package are not sharp, in general. There may be a few manufacturing exceptions, but they are very small. The learning curve with a jig is short. I have killed several elk with the exact same broadhead over the last few years. Each time I reshape the broadhead and redo the edges. You do not take nearly as much off as you might think to affect how your arrow flies or the weight. I can literally see my image in the face of a broadhead, like a mirror.
I’ve used an accusharp pull sharpener for two blade heads and been happy, sharpened montec on a piece of sandpaper on a hard flat surface with good luck. Also touched up smaller replacement blades on sandpaper without a jig multiple times. I’d buy a kme jig over a stay sharp/innovative outdoorsman