I'm going to propose another course to consider.
Before you succumb to the standard "cut off half (or more) of the trunk and bend a branch up to increase the taper" approach, I would really spend some time evaluating whether more of the current trunk can be used. I look at this tree...and see a tall, thin trunk with age and some taper (though not much, but not every tree has to be a taper-junkie), and lots of branch choices. I see potentially a tall, elegant almost literati style. What I can't tell for certain is whether there are existing branches in good locations, whether there is any trunk movement from other views, exactly how much taper there is.
I would probably wire some of the branches down and maybe do some computer virts with photos from various angles before making any decision to chop away most of that tree.
I've made two crude virts (see below), in each I've cut off everything above the split that occurs at the old trunk chop. You might choose to jin the top, or bend one of those leaders up to make a new trunk segment. It might not work, it might not be your preferred style, but worth considering in my opinion.
Disclaimer...I have a liking for tall/elegant/thin trunked trees.
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