Perfect rhymes:
* rule
* tool
* school
* fuel
* dual
* pool
* cool
* spool
* shool (archaic)
Near rhymes:
* jewel
* few
* new
* true
* sue
* you
Eye rhymes:
* mule (pronounced "myool")
* slue (pronounced "sloo")
The best rhyme for you will depend on the context of your poem or sentence.