I use serververify which is created by jbiloh from the lowendtalk forum which uses yabs (yet-another-benchmark-script) to give details about lot more things than usually meets the eye.

That being said, I have found getdeploying.com to be a decent starting point as well if you aren't too well versed within the Lowend providers who are quite diverse and that comes at both costs and profits.

Btw legendary https://vpspricetracker.com (which was one of the first websites that I personally had opened to find vps prices when I was starting out or was curious) is also created by jbiloh.

So these few websites + casually scrolling LET is enough for me to nowadays find the winner with infinitely more customizability but I understand the point of TUI but actually the whole hosting industry has always revolved around websites even from the start. So they are less interested in making TUI's for such projects generally speaking atleast that's my opinion