Although, I don't think that will work, because I don't think you can be pardoned for crimes you haven't yet been found guilty of!
Ford pardoned Nixon before he was convicted of anything so the precedent is there.
I'd rather not see Trump tried. I'm sure he's guilty of a lot and in a fair world he'd be held accountable for it. But what I really want is for Trump and his politics to become irrelevant and making him a martyr in the eyes of his supporters will only extend his grip on the national psyche. Let him play golf and eat garbage and watch TV desperately hoping to hear himself mentioned only to be disappointed.