I went through this a little bit ago and ended up buying a Kamparoo to its "better" construction. A lot of the tent trailers use staples and glue, which help them fall apart on rough terrain.
This was my list.
Kamparoo: Great Ground Clearance, onboard water and faucet, tons of room for 2-3 people (4 if some are kids), roof rack, Slide out kitchen option.VERY LIGHT
VentureCraft Trailblazer: Hard to find, great ground clearance, Storage in box of trailer.
Fleetwood Cobalt: Smallest 2 sided tent trailer ever made. More ammenities than others in category. Pump faucet, power, heater, stove ect.

Lifted version
Fleetwood Neon: Small and lightweight. Sleeps 3. Some have options for heat or ac. Has power.
Fleetwood Evo E1: Largest trailer here. Full ammenities. Heavy.
Jayco Baja: Roughly same as above with the quad rack on front. Fleetwood makes a similar model (E2,E3).
Chalet LTW Trailboss: Light, Full ammenities. Sleeps 2. VERY fast setup. very expensive.
ALiner Sport Offroad: Same as above.
Jeep Camper/ Livin lite 6.0,6.1: Ultra light weight. All aluminum, no rust. No ammenities.
