Churches cause division. They are political parties. Church members believe that their church is the right church and they believe that salvation comes through their church, but they are deceived and lost because they do not know nor follow Jesus Christ. There is only one way and that is Jesus Christ. Obey the gospel of Jesus Christ, repent and be baptized in water and be filled with the Holy Spirit, and the Holy Spirit of Christ in you will guide you into all truth. The only affiliation that you need is Jesus Christ. The moment that you make yourself a member of a church you become divided against Jesus Christ, and against those who follow Him. Jesus Christ never commanded His disciples to build churches. He commanded them to make disciples. If you follow Jesus Christ you will not be divided.
May Jesus bless you.