It is so simple to find out the best poetic devices in the poem, I will share with you the top secrets of poetic devices
Do some learning reading following
learn 13 poetic devices with meaning, definition, examples and where should be uses
great 13 poetic devices are
alliteration
assonance
allegory
allusion
metaphor
personification
simile
rhyme
cacophony
consonance
ironic expression
euphony
incongruity
These are the best poetic devices ever learned and practiced.
Where you should get information on it
You can get information through books, the internet I mean google, youtube, and social media like Instagram hashtags, pages, groups, and Facebook groups and pages,s, etc. Even you can contact online trainers & institute too.
It depends on you which kind of method do you like most and affordable and comfortable too.
Then after you get good command on it do work on yourself I mean read blogs, books, and newspapers and find out poetic devices hints.