I know of several in the post-WS Steve/Bucky feels/character study genre:
we did not make ourselves (http://archiveofourown.org/works/1429213) and amor fati (http://archiveofourown.org/works/2434637), both by M_Leigh
Almond, Clavicle, Orchid (http://archiveofourown.org/works/1459930) by kvikindi
this is a back alley (http://archiveofourown.org/works/1415230) by febricant (only Bucky's sections are 2PP)
Honey, Don't Feed Me: I Will Come Back (http://archiveofourown.org/works/2696270) by lanyon (this is tagged so you may have seen it already)
rate of recidivism (http://archiveofourown.org/works/2550842) by alcibiades

Also:
The How They Make You a Weapon (http://archiveofourown.org/series/165878) by monicawoe is entirely WS backstory, so no Steve
Unfinished Business (http://archiveofourown.org/works/2731748) is both 2PP and outsider POV (Carol!)
Some instalments of the re: re: re: re: blond joke (http://archiveofourown.org/series/104936) series by lazulisong (humorous post-WS teamfic focusing on Bucky)
i've got words to keep and lies to make true (http://archiveofourown.org/works/4599333) by orange_yarn is great Maximoff-centric backstory