Are there any commentaries in the pali cannon on The Iddhipāda-Vibhaṅga Sutta -- An Analysis Of The Bases Of Power (SN 51:20)

Are there any commentaries in the pali cannon on The Iddhipāda-Vibhaṅga Sutta -- An Analysis Of The Bases Of Power (SN 51:20). And in general, what are some sources for the commentaries, obviously in pali but also in english. (If only in pali, a preference to be able to locate and navigate without knowing much pali.)