First of all, you need to meat a woman in order to get married. So what is the ideal place to do so? In the Church, after Mass. But how likely is it? Well, some have done it. But after that you have no choice, you need to date this woman in order to learn what she is like, do you two really fit together, are you on the same wavelength. You really can not walk up to a woman and say: "I would like to marry you. How about a month from now, same place, ten a'clock sharp?" No, no, and no. The only way you will find out if she loves you, do you like her after a while, are you ready to spend the rest of your life with her, is to date. You may be right, it could go out off hands, but that is a risk you must take, and she will also do so. What would be a "safe" place to meet and get knowing a bit of her, and let her know more about you? Truth? There are no fail-safe place to do so.
And you may meet her in other places, she may not even be Catholic. Love has it's way to get a mind of it's own, and it is most unlikely that you meet her in a Catholic Church. And no matter where you find her, you simply must take the risk because dating is the only way to get somewhere with this thing. It is worth mentioning that if you are out "hunting" for a bride you will never find one. In time you will find someone, and you only have one choice, enough faith to withstand temptations that will occur. Yes, the element of a occasion of a sin is present, but you seem to be a good Catholic because you are asking this question, so I think you have what it takes to not sin while dating, beacuse dating is really a "must".