Tzemach, most of the names I have already mentioned have some excellent sonnets. The sonnet is probably the most common fixed form in poetry today. If you like short satirical poems,
The Asses of Parnassus specializes in those:
https://assesofparnassus.tumblr.com/
I find that funny poems are often the easiest to memorize. Of the names that I have mentioned, some of the especially funny ones include Gail White, Melissa Balmain, Julie Kane, A.M. Juster, and some others would be Chris O'Carroll, J.D. Smith, Ed Conti, Jayne Osborn, and many of the names you will see right here on the forum Drills and Amusements.
Susan