Hi, my suggestions are:
edensell, auctionbayz, erebuys, auctionlaunge, auctionbud, auctionrise, etradey, auctz, auctoner, auctl, auctag, auctal, auctay, auctlab, auctler, auctlet, auctles
domains .com are available
Hope you like it!
Best regards, Kruno.