Miller has had visits to IU, Toledo, Western Michigan, Northern Illinois, but offers from only smaller schools.
Arnold has interest from Columbia in the Ivy League and Butler, both Div 1. Obviously Butler is Div 1 AA. And visited Southern Illinois. Smaller schools like St Francis, Marian, etc have interest as well.
Arnold is more mobile than you think, rushed for over 50 yds and a TD vs a very fast Southwood team. It’s just not his MO.