Near Rhymes (similar sounds, but not perfect):
* delay
* survey
* display
* convey
* stay
* obey
Eye Rhymes (words that look like they rhyme, but don't sound the same):
* essay
* sleigh
* grey
Slant Rhymes (slightly off-rhymes):
* away
* say
* play
The best rhyme for you will depend on the context of your poem or writing.