For those with "Prufrock" in their textbooks, you know Eliot can be a tricky to teach. Though this famous essay is a challenge, I'd say it's much more accessible than his most famous poem. This piece is within the range of difficulty present on the AP Language exam, so practicing with this piece is worth your while. The College Board also loves to include criticism in their multiple choice section, and this will give your kids more practice with that type of writing--criticism being a type of writing that they have little exposure to outside of your AP Lang class. If you have a lower group of students, this analysis makes for excellent differentiation, assigning it to the more skilled readers in the room (and we know differentiation makes admin happy).
This practice only tackles the first section of this famous essay. It's just enough though. I have 12 critical reading/critical thinking questions written in a column to the right so that the questions pertain to the adjacent text--great for student convenience. These questions hit on the following: main idea, refutation, antecedent, paradox, vocabulary, juxtaposition, catalog, metaphor (a science one at that!), and paraphrasing.
And this piece to your toolbox, and you'll be happy with the rigor. Develop some grit and turn those students into text detectives.