@OliRos It is interesting but very time consuming if you are serious about it to try to locate your ancestors. Good luck with it. May I recommend a site that is called "myheritage.com". They have paid subscriptions but in my opinion, the best site available for your money if you are serious about it.
A free site would be "ancestry.com", a site run by the Mormon Church but that has no obligation for you to join and that is not biased and does not brainwash you. Their aim is to scan the entire Western World's church records and upload them free of charge to members. There are several billion records available to search.