Agree totally with rcjim.
Asking for something without telling what you like or not like?
Assume that you are asking for an IC model but..
Size - from 1/2A (1cc) to big 50 cc - number of engines...
Type - Oldtimer, trainer, scale, aerobatic, 3D ....
There are 10s of 1000s of plans on the net - free to download or for sale.
SPAD has been diskussed with links not long ago.