I liked the BBB BHP 21 Stem-raiser , its a Quill inside the threadless steel steerer tube on my fork.
replaces the star nut. there are a collection of shim spacers with the kit, how high the stem is to be is all the shims,
or less if you choose lower extension.
I placed a second stem beneath the primary one , and this particular type of item THE BHP allows that.
almost as good as if I were there to veto cutting any of the steerer tube in the first place.