Assonance is the repetition of an identical or similar vowel sound.

The “ee” sound in the sentence “See the bees” is an example of assonance.

Here’s an example poem that uses the “I” sound repetition:

I have a hive

it’s there I thrive

it’s where I hide

my time I bide

to go outside

collect I might

honey to mine

from pollen inside

While it’s not a great poem it give you a general idea of this type poem.