For the Transport units look to Transporter v1 from Martin Pegg part of the Luftwaffe Colours/Classic Colours series from Classic/Ian Allan.
page 64 will give you a list of 43 RK holders for the Transport Units for the period 1940 to 1945.
If you are interested in DKiG holders then please refer to the datafile that can be downloaded from the
Luftwaffedata Wiki