If the question if about the poem Alone by Edgar Allan Poe, then the answer is lyric poem. It is not a ballad, because usually ballads are those which can be "turned" into a song, which can be sung. It is not a sonnet because of its form - a sonnet is a poem consisting of 14 lines and has a strict rhyme scheme. It is not a narrative poem, as it does not tell a story, thus the only answer is lyric poem. It represents the poet's feelings rather than tell a story of some sort.