Manny: What you're probably wanting would be "Traditional" sized locos as opposed to "Scale" locos. Traditional sized locos are about 2/3rds the size of a full scale model, and look great on O27 and O31 track.
So, the above link (http://postwarlionel.com/motiv...s/alco/218-santa-fe/) shows traditional sized locos. I suspect they will be to your taste much more than scale locos will be.
Mitch