2. Frank Kaminsky
If we are going off of fit, Frank Kaminsky might be the best option for the Thunder. Standing seven feet tall, Kaminsky can effectively play both the power forward or center position. Kaminsky was the No. 9 pick in the 2015 NBA Draft and is only 25 years old. After being a key role player for the Charlotte Hornets in his first three seasons, he found himself at the end of the bench this season.
Known for being a shooting big man, he is exactly what the Thunder need. A career 34.7 percent three-point shooter, Kaminsky could give the Thunder a small-ball shooter lineup without giving up height. On the currently constructed roster, if the Thunder want a lineup of all shooters, Jerami Grant plays center and is very undersized to do so. With Kaminsky in that role, he can truly anchor the center position with his height and space the floor.
Kaminsky also is young enough for the Thunder to consider him to be a long-term prospect. If he fit in the rotation and enjoyed OKC, would he consider signing a new contract to stay with the Thunder long-term?