Go to a good sized church of a well established religion, attend regularly. Volunteer to help with programs, get involved and chances are you will come in contact with like minded persons who are serious, generous people and want to make a family under the loving grace of God.
Well, my daughter does all of that yet she met her husband on a dating app.
I do. As well as a home group just like in early Christian groups who met at people’s homes until all those massive cathedrals were built and monotonous liturgies were cited.
The best way to meet a good person for a relationship is to not look for one.