There are many. Off the top of my head the following auction houses all have an auction left in 2018 and the consignment deadline has not passed:
- Heritage (the weekly internet auctions)
- Sterling
- Huggins & Scott (if you hurry)
- SCP
- Mile High
- Goodwin
- Aquarian Sports Cards
...and there may well be more. I'd start with the ones who advertise here
