Near Rhymes (slant rhymes):
* Alyssa
* Louisa
* Priscilla
* Eliza
Eye Rhymes (words that look like they rhyme, but don't sound like it):
* Morissa
* Marisa
Alternative rhyming approaches:
* Rhyme the first syllable: "Mar" could rhyme with words like "car", "jar", "star", etc.
* Rhyme the last syllable: "sa" could rhyme with words like "ma", "pa", "da", etc.
Ultimately, the best rhyming word for you will depend on the context of your poem or song.