Where should I get my infant son Baptized?

My son is 14 weeks old. I plan on raising him as a Christian, but I have not had an affiliation with any particular Christian religion for 20 years (i.e. Baptist, Presbyterian, Catholic) I was raised Catholic and made my Confirmation, but I stopped being a Catholic shortly after that (I have still always considered myself a Christian). I would like to baptize my baby, but I don't know where to go!