Wanting to attend church, any suggestions for an open minded one?

So I’ve been non religious/agnostic my whole life, but I want to start going to church. I liked going with my friend when we were kids and want to start taking my kid, just for Sunday service.

To be completely honest I don’t know which religion I am. My extended family is Catholic but I’ve only been to Christian churches. I’m not sure I even believe in god but I also want a sense of community. I’m in Oakland and I would want an open and accepting church, as I’m bisexual. If anyone knows of a loving, open minded church, could you recommend?

Also, how do I go about it. Do I just show up for the service? Thanks in advance