Or,...... ore!..or,...an orchard...or, just about any business can be crammed in a small building.
Liquor control, heavy equipment rental, mattresses, nuts/bolts/screws, printing, ice house, tires, popcorn/cotton candy machine/jukebox/supply, landscaping supply, fuel oil depot, and a bakery, are all smaller businesses I remember seeing directly connected by sidings. Ore cars, tankers, and gondolas are the only "common" short cars Ive seen run in prototype form. But On30 or even European cars may give you more shorties.
To create an expance, I like a raised track on the "back side" with "country" backdrop, and as much undeveloped greenery/terrain as possible(an orchard?) between the destinations.