After a couple of sleepless nights reading and researching I have learned that there is no bull bar, grille guard or anything short of a replacement bumper with sensor holes that will not interfere with the front or back sensors of the park assist feature of the 2018, 2019 ram 1500 classic.
And in my opinion a bull bar or grille guard/brush guard is far and away better protection for the front end than a system that just alerts you with auditory chimes.
So for my Ram she will be getting a bull bar or grille guard and I will simply turn off the front park assist system. Who said you can't teach an old dog new tricks?