Just wanted to drop this video essay/narrated playthrough (not really a Let's Play) about the best CRPG ever made (tied with Disco, ofc). This channel makes them for a lot of popular RPGs and obscure Fallout mods. He's very thorough, so it's going to spoil the entire game, but if you've already played it, I thought it was interesting to get someone else's thoughts on things.
There's also a planescape "book" that is basically an extraction and consolidation of all the text descriptions and dialogue in the game. It is a bit awkward as a novel but it is cool because it's literally all the text from the game.