All collectibles can be found in this video. The family secrets are the silver ones. Luckily, you’re able to get all collectibles in the theatrical cut of Little Hope, which wasn’t the case for Man of Medan, so if you didn’t preorder for the Curator’s Cut and don’t have anyone to play Shared Story with, it’s no problem. Just note that the final Family secret requires you to find all other 49 secrets first, doesn’t have to be in the same playthrough, you just have to have every secret besides #10 and you’ll get the last one during the final cutscene. Note that you may also have to have Vince forgive you at the end. This can easily be accomplished by not shooting at the demon near him while fleeing to the church and then talking him down at the door rather than making him angry.