I would describe myself very similar to you, and I live in Santa Rosa. I have struggled with this most of my life and now, for most of my kids' life too. As an adult, I have been to many churches.with an open mind, asking lots of questions, and have always been welcomed warmly into each one. They generally love visitors and new members. Most of them have wonderful children's programs.
My problem is, and believe me I have tried praying about this as some have suggested, in the end, I just don't believe all the specifics of any one religion. They are wonderful places to go and belong, be with like minded people, people who generally want to raise their kids to be good and kind and do as God/Christ tells them, with wonderful groups and activities. But for me, I can't get past that I just do not, despite trying, believe in it when they talk about their real core beliefs.
I have studied a little about some religions and they all believe somewhat differently or sometimes so drastically differently.. In the past, there have been peoples who worshiped the sun, and other forms of nature (and still today to a lesser degree). (I'm no expert here, just trying to explain my thinking. I have a lot to learn, I will admit). My cousin, a historian, has described to me the origins of some religions and the history involved in their development. There are so many "holy", or whatever word is appropriate to their particular religion, books. In the end, personally, I just can't believe that only one of them knows the Truth. or that one of them is right, therefore, the others are all mistaken. We are all one people. I have just had to accept for myself, and for my children, that I believe in a creator, but I'm not able to "choose" one or choose a way of worshiping Him. (?) I teach my kids what I believe, (my husband is similar), and tell them that they will have to find their way when the time is right. I allow them to go to different churches with friends and church camps in the summer and then we talk about what they have learned. We say thank you prayers to our creator, whom we call, God, at dinner, or whenever, and basically show our appreciation for what we have. We live very similarly to following the commandments that are taught in the Christian religions as they seem like common sense to me. We have morals and values like any family.
I will say there is a "church", I think it is called, or used to be called, The Church of Religious Science. There is one on Sebastapol Road. If you message me, I will gladly clarify the name and address and give you more details. I 'm just not that tech savvy to find a link for you just now. Anyway, I was excited to find that it is a place of worship that accepts God to be in whatever form one thinks He is. All religions are "right" or acceptable at this church. They do not claim to know all the specifics but they strongly believe in a God and the benefits that a church community has to offer people. They keep the rest open to personal beliefs. (I may not be describing it accurately but it is something along those lines and the concept really worked for me). When I was attending, they had just finished studying all the major religions together. Unfortunately for me, although all of that was a great fit for me, I didn't feel it was appropriate to become complete members and make it a big part of our family life. I can explain that more later in a private message if you are really interested.
Anyway, I really feel for you. It can be a very difficult decision to make. I am still open minded but am more and more comfortable with accepting my beliefs for now. Good luck on your own journey and for your family and I really hope you find the answer that fits for you one day.