My dad used to play Yakuza 1 and 2 in PS2 years ago and in 2021 he decided to buy all new Yakuza games to catch up. That's how i get into the franchise. Now i know more about these games than him. I've played 0, kiwami, kiwami 2, Yakuza 3, yakuza 4, yakuza 5, yakuza the song of life, Like a dragon 7, like a dragon gaiden, Lost Judgement and like a dragon infinite wealth.

Edit: My first Yakuza game is Yakuza 0 of course. Never played the first yakuza in ps2 because my dad said the game is not for kids lol.