One thing that can’t be ignored is the Visuddhimagga. It’s not in theory a commentary on any particular sutta (unless that be SN 1.23), but rather on the suttas as a whole, especially the crucial doctrinal passages. The other commentaries constantly refer back to it, or assume knowledge of it.
There are, of course, bunches of commentaries in Chinese and Tibetan, which may fall outside the scope of what you’re interested in. But the Sudassanavinayavibhasa (in Chinese) is rather unusual in that it is of Sinhalese origin, and in some respects closely resembles Buddhaghosa’s Samantapasadika.