Perfect rhymes:
* bark
* cark
* clark
* dark
* embark
* lark
* mark
* park
* remark
* stark
* tark
* work
Near rhymes:
* arc
* ask
* bask
* cask
* disc
* dusk
* flask
* mask
* task
* whisk
Eye rhymes:
* clerk
* jerk
* smirk
* Turk
The best rhyme for you will depend on the context of your writing or speech.