What is the form (narrative, sonnet, monologue, lyric) of "We Real Cool" by Gwendolyn Brooks?

This poem is a lyric poem, except, of course, that it is not one
person telling us about themselves but a group that speaks using the first person plural, "We."
When we think about the form of poetry, a narrative is a story told normally by some form of
omniscient narrator, a sonnet is a fourteen line poem with a strict rhyme scheme and structure
and a monologue poem is a poem that is a long story told by one
person.

A lyrical poem is a poem that is normally short and brief,
and a poem that is of a song-like quality. The alliteration and the rhyme serve to make this poem
definitely song-like in its presentation. Just read it out to hear the song-like cadence of the
rhythm.