I was looking for a good source on eighteenth century literature and I found one that I really like. It isn’t even clunky. If you go to the bottom, there are arrows to push so that you can advance without having to go back and hit the next year you are interested in. The website isChronology of Eighteenth-Century Literature.
I really like it because it also has music, art, theater, politics, and science as well. So you are not looking at the literature in a vacuum but can examine what else was going on at the same time.