Users can upload avatars?

I’m looking to build a site which will have multiple authors and I’d for them each to have the option to upload AND manage their own avatar, preferrably from their profile page.

IS there any plugins that can accomplish this?

I’d like to have the authors automatically show up in a list on the sidebar like on the below page without having to edit the code every time a new author is added:
https://www.bloodhoundrealty.com/BloodhoundBlog/

any help is greatly appreciated.
Thanks.