Keeper of the lost cities series by Shannon Messenger is the closest I've ever come to reading something that gave me Harry Potter vibes and I say this as someone who's been reading fiction for over 10 years.

While some of the dialogue and actions of the characters can make you cringe at times( pre-teen to teenage characters so it makes sense), it has a lot of magic and world-building that I loved about the Harry Potter series. Give it a try and check it out!