Well, let's see. Papal infallibility is a myth. If no other pope in the history of the RCC proved that one it was Jospeph Ratzinger.
Mariology is not scriptural. Purgatory is not scriptural and in fact marginalizes the death of Christ on the cross. As does the crucifix that perpetually holds Christ up to shame for his resurrection being marginalized due to his body being nailed to the icon.
The mass is not scriptural, nor is the Eucharist rite scriptural or in keeping with Christ's teaching.
The Rosary is not scriptural. Graven images are against scripture and one of the 10 commands of what not to do, while the RCC is full of such things.
Revering the dead, necromancy for all intents and purposes, is contrary to scripture. Revering the dead that are deified as saints, asking them to intercede with the Godhead on behalf of the believer, is not scriptural when the Bible tells us there is one mediator between man and God and that is Christ Jesus. This would also revoke the primacy of the pope.
When Jesus referred to the Pharisees and Sadducee as vipers because of their rulership in the temple over the people and the path to God, how would one imagine he would approve the same heirarchal construct in the RCC.
When Jesus told Peter he was the rock upon which he will build his church he wasn't talking about the construction of the Vatican and the RCC. The Vatican being constructed over the tombs of the dead pagans and it's bowels now filled with the corpses of dead popes, while the body parts of the dead later decreed "saints" by election of the RCC authority, are worshiped as relics.
Jesus was instead talking about the testimony of Peter and his delivering the good news of Christ unto the world. The church, contrary to what the RCC recognizes, is the body of the faithful in Christ in whom the Holy Spirit of God is indwelling. We are all saints in Christ Jesus.
As for what denomination is closest to that of the true teachings of Christ? As to a denominational alignment for the Christian, some say the Church of Christ. It holds strictly to the teachings of Christ in scripture.
I'm unaffiliated. The church of Christ for me is the body of faithful in Jesus. Who said, where two or three are gathered in my name there am I also.
Community world wide of the "Christian church" is insured in the billions of those faithful to Christ Jesus first.
Not to the church that presumes to be an entity that acts as emissary between the faithful and God. And who's appointed authorities claim to communicate changes in doctrine because God has a one on one with the pope. While priests are said to be the 'father' and who act as the representative of Jesus on earth . When Jesus told us call no man father but your Father in Heaven.
Those are just a few examples.
You threw down the gauntlet saying we needed correcting?
I picked it up as in john6 " but where would we go"
And seeing 10000 choices none of which agree, some I have already left because of it, a fair question to you is so " who has the truth?" And which are preaching false doctrine? That was the problem I had before joining RCC , it is not a trip you up apologetic argument.