I think it's great that you want to become certified! I am in no way trying to be rude but this information is readily available through a simple google search. That should definitely be the first option to look for information like that and will save you a lot of time.
There are two certification options including the MSNCB, Medical-Surgical Nursing Certification Board, and the ANCC, American Nurses Credentialing Center. You may want to check with your facility to see if they have a contract or preference as to the certification you receive. For example, my facility works with the MSNCB and by following the instructions given, I didn't have to pay anything out of pocket for my certification. As far as studying goes, there are live options (similar to going to a Kaplan review) in preparation for the exam but again, you may want to check with your facility to see if they will cover that education expense, as they can be a bit pricey. Outside of that, you will want to get the certification review book for the type of exam you are going to take and use any other resources, such as free online testing, to fill in the blanks. Good luck!