Just got a smoking deal on a CAADX SE. Came with 37c Riddlers, Frame looks to have the space to possibly clear 40-42c comfortably on this rim. While the geo of frame is racier, i'll tell you that rake/heattube angle (even with stem set negative rise) makes it so much more comfortable that my other road bikes from a position standpoint, let alone the generous air volume. Not sure i would want anything more lax position than this since i still like to attack miles at a strong pace.

I too originally was looking at the Topstone, but i found a 2018 105SE CAADX on ebay for $900 new in my size, and that a decent amout less than the Sora equipped Topstone. It has mounting options for the fenders and arch too, so i didnt sacrifice any of that versatility. Topstones have very hard to find locally around my ways , only a few of the green Sora's have made it to my local shops.

That said the selection you've narrowed down are all great. Also checkout the Canyon Inflite AL and the Canyon Grail AL.