I am gunna be super biased here but my 2c:

The tech on the Suzuki is pretty cool, but after owning a 2017 MT07 for several years and upgrading to an 890 Duke R, I still miss my Yami. I really loved that bike.

In saying that, some, imo, required upgrades are a better exhaust (I went Akro carbon), a tail tidy and an R6 throttle tube. That really changed the bike for me, and I still miss it's throaty exhaust note.

Something I really liked about the MT was that it was an established platform, so there were aftermarket parts out there everywhere for it. I think the style of the 8S is really sleek, as is the MT07. In reality, you will probably be happy with either bike, but being a fanboy I would have to recommend the MT.