Chemical Engineering PhD, What schools should I apply to?

Hello guys. I am a junior chemical engineering major, am not applying for PhD until Fall 2021 however as I am doing a 5 year BS/MS. Having difficulties deciding what tier I would apply to.

At the time of applying I will have two posters, 3 years in the same lab, one research internship, plus part of my MS thesis, and maybe a pub if everything goes perfectly. Not sure yet about GRE but I assume it will be okay.

The main issue is my GPA, I will have a 3.7 cumulative and engineering at the time of application but that is after 3 retakes and 2 pass/fail (this is for COVID semester). Is this enough to prevent me from applying to high tier schools. I was thinking University of Colorado?