All of them...no seriously. I have yet to come across a Rush album I didn't immediately take to. With this in mind, I would personally suggest Fly by Night, 2112 and Moving Pictures as jump off points. Think about the songs you like most on Chronicles and then find the album(s) containing those songs. Different albums are great for different reasons and some go together quite well (Farewell to Kings and Hemispheres is the example that really pops out). There is also Different Stages Live, a live anthology, similar to Chronicles worth checking out http://www.amazon.com/Different-Stages-Live-Rush/dp/B004JKJQ8Y/ref=sr_1_11?ie=UTF8&qid=1429391868&sr=8-11&keywords=rush+live