airport or small field? depends...

Scary question if it means you arrive at an unknown site without enough energy to provide some time to inspect and think through a landing.

If you don't have a known site/plan pre-chosen, how to land depends on which looks like a better plan when you get there. How big, how rough, slope, doable approach, how get a trailer to it. As a bonus, can I get a tow out of there. Double bonus if there is beer and BBQ on the ground. That needs some time to sort out.

Knock on wood, so far I've been able to get to each outlanding with enough energy to circle to inspect and if I can circle with zero sink, maybe extra inspect, move landing plan, or climb out.

I don't think this is so much a matter of luck as being willing to sometimes divert sideways or backwards from task early when low to get to a place more likely to work out.

Once this meant choosing between three equal fields. One with a locked gate, one with cows and one freshly harvested with empty rows pointing to a nice open gate. Retrieve was about 50 feet.

Once this meant zero sink circling/inspecting over a beautifully groomed site next to a road. A second circle showed it to be a horse farm behind locked gates with a equally good place outside the gates which became the new best place and a source of enough lift to finish the day's task.

I'm not sure if airport or field is answerable. Instead of asking, try to get there with enough energy to provide the time to choose.