I understand very much where you are coming from, and you are going to be enriched by your spiritual seeking, I'm sure of it. Attend all the churches, you will know after awhile which one feels right, which one is speaking to you, which one feels like it will help you grow and learn, which one is made up of a community of believers that you would actually want to spend some time with.
Don't be afraid. If questioned, simply say "I'm in the process of finding a church home, I haven't decided yet which one is for me." Other people understand that answer perfectly. You don't have to give out your address......and you can always ask to speak to the pastor or priest in their office during the week, if you want to pursue knowing more about their church.
Also, attending an adult Sunday School and/or Bible Study at a church, as well as the service itself, will give you insight as to their beliefs and values. Many churches are too political for me, not at all what I was looking for back in the 1980's when I first started going to church. This played a big part in my decision to join a church that had more liberal global views. You yourself may be looking for something completely the opposite, and that's okay, too.
Also, I will give you a bit of advice that I heard on a Christian radio station once -- never attend a church where the pastor can't be fired. Everyone needs a supervisor, these people are only human. Make sure the Vestry or Elders or whatever they have making financial decisions for the church are not relatives and in-laws of the pastor, too. And use common sense -- if something doesn't seem right about what a Church is teaching, and if they don't welcome questions and debate -- then it's time to move elsewhere.