There were some comments online indicating that the penn state program had about a 10% admit rate but those are pretty old (> 5 years). If it’s like the general trend though it’s probably lower now.
I’m not that familiar with schools east of the Rockies (which seems to be where the OP is looking) because of where my student is looking at, but are there any like a U Arizona or even Cal Poly Pomona where they don’t require portfolios and a certain grade would be either an auto admit or a likely admit? It strikes me that with the unpredictability of BArch admissions the need for likelies/safeties is probably even more critical than a normal college search?