There are many new nondenominational churches forming. I go to one with new ideas about worship, but still strictly Bible based.
Denominations were formed by people with different ideas as to how things should be run. Some have different ideas as to interpretations of Scripture.
When I look at a church, I want to know what they believe about Jesus, the Father, the Holy Spirit and sin. If it agrees with what I believe is true from my own Bible study.
We are not to believe everything someone else, even a minister, tells us. It is important to read the Bible.