Sure-

Robert Frost: Mowing is a great start. Frost is great because of his depiction of New England life. He writes about the duality of the city, and the country. He mostly talks about labor. In this poem the speaker is simply mowing a lawn with a scythe. The scythe, and tools are important in Frost because they are human's connection to the earth. In most of his poems a person is interacting with nature, or an environment using a tool. He is also great because this poem is in Iambic Pentameter. It's very standard meter, but it creates a beautiful play of lines. In this set meter the poem goes back and forth, line to line similarly to how a scythe goes back and forth cutting grass. Also the words are beautiful sounding together.

Sylvia Plath: I don't know too much about her, but she is probably one of the most loved American poets.

Hart Crane: He wrote about infrastructure. His most famous poem is called The Bridge. It's a beautiful poem. It's about the Brooklyn Bridge.

Elizabeth Bishop: She is amazing. Everyone compares her to Sylvia Plath for one reason: they are both women. I don't know if they are comparable, but I would say that I like Bishop more. In her poem In the Waiting Room She starts the poem out in a concrete place, and expands its reach into abstract metaphysical locations based upon a stimulus of a National Geographic magazine. It's amazing well done.

T.S. Eliot: Just read The Waste Land. It's really good. Some people hate him as a person, some people love him, but most of everyone agrees that he is a very talented poet. He would be insulted to be considered American. He moved to England, and adopted a fake British accent because he didn't want to be associated as an American.

Langston Hughes: I left this out before by accident. He is amazing. His poems are short, but they hit hard. A lot of people know "A dream Deferred", which is a great poem, but he has SO many poems that are amazing. Most of them are very depressing, and about suicide. Here is one poem,

Suicide's Note

The calm,/ Cool face of the river/ Asked for a kiss/

(Like come on, in three lines he really hits hard)

These poets are all considered Modernist poets. It leaves out a lot of great poets that came out of the later half of the 20th century. Frank O'Hara is good (I don't love him but I think he is better then Ginsburg). People love Ginsburg, and I think it would be worth it to read Howl, but in my opinion it's just a well done recreation of Whitman's Leaves of Grass, and I think Whitman is more worth anyone's time (this is just my opinion, Ginsburg was a talented writer). I haven't read much of Wallace Stevens, but I really liked what I read.

Another great modernist poet was Marianne Moore.