Sorry for the lack of updating! I'm doing this for a contest, haha.
So I actually heard about LensHero from a friend who told me about the contest. Thank you, Heather! :)
I'm surprised I haven't heard about it before - although it seems pretty new - but it is honestly the easiest and most convenient way to find the exact lens you're looking for. It lets you enter the type of camera you have, what type of lens you want, and your price range. For example, I entered my camera (Nikon D3100), my price range ($250), and the type I wanted (fisheye). It narrowed it to ONE option; the exact option that met all of my criteria.
There are other ways to search for lenses too; you can type in the exact lens model you're looking for, or you can browse through links. Honestly, though, the first way is definitely the easiest. No headaches of scrolling through infinite pages only to come up with no results.
The interface of the homepage is very simple, which some people may not like, I suppose. Also, the specificality of the search bar (entering in the lens model) might prove to be a hassle unless you know exactly what you need. Other than that, this is a great way to find the type of lens you're looking for. I will definitely be using this site when I have a budget again! Haha.
Check out the website for yourself, avid photographers or newbies: lenshero.com