Josue, this is awesome! I love learning about other denominations through church history, theology, and sociology books. One book I found helpful in this regard, related to various evangelical groups, was Mine Eyes Have Seen the Glory by Randall Balmer. It’s a great thing to also attend events; I haven’t had the opportunity to do that much, other than attend services of various churches. Finally, if more people asked questions and got to truly understand other believers, we would have a much more harmonious international Christian community and would be a much better witness to the world! Good for you!