World has a Rambler, it's a 40 size sport tail dragger with retracts.
VQ from Morris Hobbies has some 40 to 60 size war birds with olio strut equipped retracts.
VQ also has a A-26 Invader that is Spring Air ready.
H9 has a beautiful P-51 but the retracts are JUNK!
EZ has a 40 size P-51 with retracts.
Model Tech has a 60-90 size Thunderbolt with retracts.
Model Tech also has a 40 size P-51 with retracts.

There are more out there, buy a RCM and a MAN mag.