I don't know much about cars and have been passively looking for an older van for a while to get a sense of what's on the market.
There's KBB and Edmunds, but doesn't seem like their ratings for cars older than 5-7 years are meaningful. It seems like KBB just pulls descriptions from Craigslist and tries to automatically assign sentiment score to them. There's also Consumer Reports, but not sure whether they focus on older cars or not.
I've read on reddit a couple reviews of older Econolines, Expresses and Rams. But they are pretty conflicting and it seems like even within the same model (and possibly year) could be engines that vary in reliability.
So the question is whether there's a list of good reliable vans 8-12 years old that would statistically mean a higher chance of not having to spend much on maintenance. Or, alternatively, is there a good reliable source of information about the quality of specific models/engines? (As in, look up what you're potentially thinking of buying from private party.)