This is a personal question, and therefore, only you can answer it properly. However, we can provide an example to guide your work. As the topic and subject matter are not included here, I will chose the subject of reading.
There is nothing I love in this world more than reading,
I just can't describe how I love this magical feeling.
I am immediately transported as I sit in my nook,
and to a hundred different lands I travel when I open my book.
Bang! Bang! A gun cuts through the air in the Old West,
And the kiss of a prince awakens a princess from her rest.
Robin Hood appears and reminds me to be bold, be brave.
And with Aladdin I see a million wonders within the cave.
The things I can discover within the pages never end,
and that's why books willl aways be my best friends.
In this poem, I use onomatopoeia, alliteration and rhyme. Alliteration is a device in which several words that are close together have the same initial consonant sound. I use this device in "be bold, be brave." Onomatopoeia is a word that phonetically imitates the sound that it describes. I use this device in "Bang! Bang!"