Sts. Peter and Paul in Wilmington have Traditional Mass every Sunday (except the third Sunday of the month) at 6:30, and every third Sunday at 9:30. On the third Sunday of the month, they swap – usually the 9:30 mass is the Ordinary Form in Latin.
They also hold to traditional calendar days for Holy Days of Obligation – while pretty much of the rest of the Archdiocese of LA celebrated Ascension on Sunday, for instance, at Sts. Peter and Paul, it was still on Thursday with an EF High Mass. They also do celebrate EF Masses on request for weddings, funerals and the like.