So I was at Advance Auto Parts just browsing and look what I came across! Castrol Edge with Syntec Power Technology 5W-40. On the back, I saw the BMW LL-01 spec listed.
I brought a bottle to Baron and Russ, Isaac, and Jeff all said it looked good to use! Definitely easier to find than German Castrol (0W-30). Also, Castrol's website shows this listed as a BMW LL-01 oil under the data sheet for Edge with SPT.