This really opens things up because virtually every selective LAC and smaller university is likely to be good at a core subject like Econ. There may be some exceptions but I think they will be rare.
That said, I think Rhodes College has a Business major (no undergraduate Accounting, as far as I know). Again I don’t know about the climbing but it might be worth checking out if you have not already.
It looks like Furman has both Business and Accounting.
But I am pretty sure I am naming more places with at least quite a bit of Greek life, which leads me to . . .
Which of course is fine, but I do know people will go to places like Bucknell with zero interest, and then end up rushing because they make some friends and actually come to value it.
So maybe some of these places might be worth a visit, again assuming the climbing was satisfactory.