Perfect Rhymes:
* coiter (archaic word for "to copulate")
* moister (more moist)
* pointer (something that points)
* spoiter (a rare word for a person who loiters)
Near Rhymes:
* boister (lively and noisy)
* choiter (a word that is close in sound but not used)
* hoister (to lift or raise)
* shouter (someone who shouts)
Eye Rhymes:
* boiler (a device for heating water)
* coiler (something that coils)
* toiler (someone who toils)
* voiler (not a real word, but rhymes visually)
The best rhyming word will depend on the context of your use.