The best way to find new poems: dig around the poems you’ve liked before.
Search up poets online, find their collections. Request them at your local library. Buy them (if you’re able, not at Amazon: here are some online alternatives). For new work from established and emerging poets, try magazines. Find out who your favourite poets admire. Discover poems the way you enjoy discovering them, whether that’s reading something closely every few months or reblogging a few lines on Tumblr on your way to work. Browse in the poetry section at big high-street stores, at old charity shops and libraries. You will find many poems you don’t like or understand; stay with them if you want, or put them aside with no shame. You can always come back to them later. Go to live readings/spoken word nights/storytelling events. It’s okay if you’re alone or don’t have clever questions. Above all, listen.