Not too keen on his LOTR work, to be honest, but the other two you mention are excellent.
For fans of rambunctious orchestral music, I recommend this cue:
But my Rahman love is mostly centered on the songs and the more India-meets-west/poppish tropes here and there, throughout his work. Or when he goes more etheral, which is quite often, like in 2019’s BEYOND THE CLOUDS.