I think you are asking for a drop catching service. You could Google this, and it will give you a number of options and comments.
If you have API access at your registrar, you could schedule api registrations in such a manner for pre-determined domain names you are wanting. Many registrars have fair use policies for API activity, however. So, you wouldn't likely be able to register hundreds of domains in this fashion, but it would be perfect for a handful of expired names per day.