Yusei Kikuchi –
Kikuchi is supposed to be the next great pitcher from Japan and he is already said to be interested in the Angels for obvious reasons (Shohei Ohtani). Although the Angels have already signed two pitchers in Matt Harvey and Trevor Cahill, but Cahill can be used out of the bullpen as well if the Angels sign Kikuchi.
Kikuchi has been very solid throughout his eight year career in Japan going 74-48 with a 2.81 ERA and his WHIP is a career 1.177. He did have some arm issues last season which may be a red flag to potential teams that might sign him, but many think it is still worth the risk.
Kikuchi would be a potential #1 or #2 starter for the Angels and he is only 27 years old.