Hilariously I've done something similar for the same reason. Medium shirts/sweaters are generally too short on me but large sizes feel baggy. I only travel occasionally to the US for work, so last trip I had ChatGPU look at several US-based retailers (eg Land's End, LL Bean, American Tall) to see if there was stuff in stock I might want to have shipped to my office/hotel.

Just curious, did you check the stores’ sites afterwards for false positives or negatives? eg, “no this store doesn’t have anything for you” but it did?