Having a hard time finding trustworthy sources to learn the stock market, where should I go?

Hey party people! I’m trying to get into the stock market but I’m not sure where to begin. I tried watching YouTube videos about it, but it always feels like they are just trying to sell me on something or are just providing useless information to get another video out. What sources should I use to learn? Whether it’s a book, website, or a more reliable YouTuber I don’t care, I just want to learn. Also what apps should I use to buy and sell?