A few days ago I managed to find an edition of the “scholia vetera” on Juvenal, in an 1839 edition . It starts on p.153, here. It’s not a critical edition. Indeed I believe the critical edition is that of 1937, but this is not accessible to me. So … let’s make do with what we have.
The scholia begin with a vita. Then the scholia begin, starting with some remarks on Semper ego…? (Why should I always…?) I can’t help feeling that the scholia could usefully be translated.