Your reason is to love and serve God, desiring, in this past 500 years of division, to seek the One True Church. Ultimately, it boils down to two ancient communities, and they were formerly one and will be One. Trace it back, all the way back, unless you want to risk your salvation on the personal opinions of men - European men 1,500 years after Christ.
They radically reversed much of what Christ taught and passed on via His Apostles. The True Church requires, as Christ required, that you first deny yourself, then take up your cross, and only then, follow Him. Look at the orders of religious: Sisters and Brothers. They deny themselves of everything but food and a roof.
Search for the very bones of Saints Peter and Paul. Were are they and how did they get there? Look at western civilization. The scientific method, university systems, hospitals, the legal system in which you are presumed innocent. None of this came from the reformers - they inherited it from the Catholic Church.
There is not a reformation community on earth that meets that. It’s all easy peasy. Go to the “worship service” when you feel like it. Don’t confess sin and hear the words of absolution (Mark 2:5, Luke 5:20, 7:48), Don’t believe that the bread and wine become His Body and Blood - even though He said so in clear and plain language.
Look at which Church repelled repeated Islamic invasions - the reformation did not do that; if anything, it contributed to much of it by dividing and weakening Christendom. Look for the Church which gave the world the bible. Look for the Church which Christ founded on Apostles - never mentioning a peep about a scriptural foundation.
And on and on and on…
Dig into history and the One True Church will become clear.