There's been other posts over the years, but what's available to buy has changed. So I thought I'd see what the current collective wisdom is: which trailer hitches work best on a Brompton? It'd be cool to be able to do the parking/kickstand wheel fold with the trailer on, but that's not really a requirement as I'd need to detach it to lock up anyway. It just needs to not interfere with the fold at all when the trailer is detached, and not stick out in a way that the bike wider when folded.

And I want something a little easier to load with multiple floppy canvas shopping bags than the travois-style seatpost-mount trailers.

I've been haunting my local craigslist for beat-up kid trailers I could tear down and DIY, but nothing has appeared, so if I'm going to pay retail I want to be fairly sure about what I'm getting.

(I'm in the US, so it needs to be something with an established US dealer.)