Formal:
* Bard: A poet, traditionally one reciting epics and associated with a particular culture.
* Verse-maker: A more literal description of someone who writes poetry.
* Lyricist: A poet who writes song lyrics.
* Rhapsodist: A poet who recites epic poems.
* Sonneteer: A poet who writes sonnets.
Informal:
* Wordsmith: A skilled user of language, often used for poets, writers, and journalists.
* Rhymester: A poet who uses rhyme, often in a humorous or lighthearted way.
* Verse-writer: Similar to "verse-maker" but less formal.
Specific to Poetry Styles:
* Troubadour: A medieval poet who wrote and sang love songs.
* Minstrel: A medieval singer, often a poet, who entertained with music and song.
* Dichter: A German poet.
The best choice will depend on the specific context and the tone you want to convey.