There is a growing collection, out there in the media or at least here on AA. More so than past Met teams, Dr. K and The Franchise excepted. There is:
Captain America -- DW From the World Baseball Classic.
Captain Fastball -- Parnell
The Dark Knight -- Matt Harvey, via Sports Illustrated
Thor -- Syndergaard. Hopefully he'll put the hammer down some time this year.
Captain Kirk -- I won't try to spell it.
The Irish Hammer -- Murphy.
and more recently
The Silent Assassin -- Wheeler
Muscles -- Tejada
Found Money -- Mejia. Hopefully he'll stick long enough to earn some for himself.
Grandpa -- Granderson
Hopefully a few more will do something to earn an obvious tag this year.