Any of the Angelique games that were released for PSX would be good choices. There's a fairly strong English fanbase for the series, though it's been around from 1994 to the present and no games (or other media spinoffs) have ever been officially translated. I was going to do work on the first game for SFC, but things didn't work out with that, and it had some strange encoding...
I think the following were released for PSX: Angelique Special, Angelique Special 2, Tenkuu no Requiem, and Fushigi no Kuni no Angelique. There might also be a PSX version of Angelique Duet, not sure (most of this chunk of the series was released on PC-FX, Saturn, and PSX, but there were a couple of titles that weren't on one or the other...). If I remember that correctly, the best choices would probably be Duet or Tenkuu no Requiem. Special is an enhanced version of the first game; Duet is an even more enhanced version of it that lets you pick the player character. Tenkuu no Requiem is currently the only RPG in the series, and is one of the more popular titles.
Hope that helps, good luck picking something!