How do we really know that we’re in the right denomination and does it really even matter what denomination unless they’re a cult obviously they’re wrong, but how do we know which one to follow, which one to go to or what church?
How do we really know that we're in the right denomination? The Bible answers this question.
2 Timothy 3:16-17 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, thoroughly furnished unto all good works.
Noticeably absent in this declaration is tradition. In fact, Jesus warned against tradition.
Matthew 15:3-6 But he answered and said unto them, Why do ye also transgress the commandment of God by your tradition? For God commanded, saying, Honour thy father and mother: and, He that curseth father or mother, let him die the death. But ye say, Whosoever shall say to his father or his mother, It is a gift, by whatsoever thou mightest be profited by me; And honour not his father or his mother, he shall be free. Thus have ye made the commandment of God of none effect by your tradition.
If tradition causes you to break the commandments of God, then it is making the commandments of none effect.
Isaiah 8:20 To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
If the Bible teaches sound doctrine, then the Bible gives you everything you need to know. I suggest prayerfully reading the Bible, so that you know what the truth is. Only then can you determine what church is Biblical. Note that it isn't so much about personal preference as it is about whether or not a church is upholding the Biblical standard. If it is upholding the Biblical standard, the rest should already be in place.
The internet is a great way to find out about the various denominations. Most church websites state their beliefs. Test them with scripture. Quite a few churches live stream their worship services on YouTube. Watch before attending.
There is a church out there for you.