Nexus Mods is currently hosting a Fallout modding marathon timed to coincide with the second season of the TV show. Fresh off a rewatch of the first season I'm replaying New Vegas right now myself, and keeping an eye on new mods like the ones that add a unique upgradable outfit for the Courier and extend the companion wheel.
The highlight so far is Lip Motion Fix, a mod that is available for both New Vegas and Fallout 3 since it deals with a consistent issue in both games. As modder Asterra highlights in a before-and-after video, lip sync is broken in both games in the exact same ways.
