I am an atheist and I have some questions

I am not trying to attack anyone's beliefs or convert anyone I am just genuinely interested in the beliefs of others and the idea of theism. My first question is: what are some reasonable arguments for god that don't fall under the god of the gaps, intelligent design, and any variation of "because the Bible says so". My second question is: is there any good Christin YouTube creators that do long form content on the topic of Christianity that are intelligent and respectful that you can recommend to me, an atheist, to educate me on the topic of theology. My last question is: if you find it reasonable to believe in a god why the Christin god and not a god of a deferent religion or multiple gods.