You can learn all about National Poetry Month and encounter a lot of poetry on the website of the American Academy of Poets: poets.org. There are many ideas for use during this time of at-home learning. However please note that the website poets.org includes a lot of poems with adult themes that are not intended for children. I even find that their selections for children brush up against content better suited to teenagers. Just something to be aware of before you turn your children loose there. (Poetry can be strong stuff!)
Below are a variety of poetry books to enjoy during poetry month or anytime. There are collections of poems, novels in verse, books that encourage young people to try writing poetry, among other fun selections.
Clicking on an image takes you to that book's digital catalog record at the County of Los Angeles public library, from which you can check out that ebook instantly (unless it's already checked out, in which case you can place a hold on the item). If you don't have a library card, you can get a digital library card instantly and start checking out ebooks and audiobooks right away.
I hope you enjoy National Poetry Month!