A.S.
Hi C.
Other posters have pretty much covered all of the bases. We are in the process of getting our daughter baptized right now. This is our second child to be baptized. We are registered with our church and have established ourselves with them, meaning they have us in their records as members of the church. Just as we did with the baptism of our son we picked Godparents and are required to attend a class. It's very simple and only lasts a few hours. It mostly consists of sharing beliefs and what not. After that we may choose a date for the baptism.
I would suggest finding a church near you that you are comfortable with and calling their office and let them know your situation and they will guide you from there.
I'm not familiar with churches in Ontario but I know there is St. Anthonys in Rancho Cucamonga, St. Peter and St. Paul in Alta Loma, and St. Josephs in Upland.