There are basically 2 types of oxygen scavengers 1. Powder type and 2. Liquid type.

Depending on the application and process the oxygen scavenger can be selected. To mention few Oxygen Scavenger liquid type are, Sodium Bi Sulphite Solution, Sodium Sulphite solution, Sodium Metabisulfite Solution, Ammonium Bisulphite solution ASS solution and etc. where as powder type oxygen scavengers may include Sodium Bisulfite Solution powder, SS , Sodium Metabisulfite etc.  there is a wide range of oxygen scavenger which will be to long to describe.