Here’s an auction with some LGB and Magnus, starting from lot 340 on. Mainly Euro, but some US.
http://www.ambrosebauer.com/auctionlist.php?auction=253
You have to pre-register with this company, and it’s not an automated process to do so. So if you want to participate (and if you haven’t done so for a past auction, it’s a 1-time registration), you should probably email them asap.
Cheers,
Cliff