Chopin Barcarolle should; also the first Ballade, I believe. If not 6/4, they are the 6/4 feel.
4th prelude from WTCI
bach's english suite has somedances that have 3/2 which is cut time to 6/4. courantes
Careful - 6/4 generally implies compound duple, not triple meter.
il vecchio castello from mussorgsky's pic's is in 6/8 but has a 'dance feel' that the 6/4 might? btw. i have a question on measure 27 of this piece as it looks like the g# is held - but it's not, right?! there's also the slur from the b to the g# which would indicate that they are connected and a melodic slur? also, measure37 seems to indicate a cadence of a melody which includes the lower note. is this correct?
i'm pretty sure that the g# in the rh is played. it just doesn't make sense any other way since every other repeat of the idea is playable entirely to the last note.