I saw a few of them are on sale, and I thought one might make for a nice light-hearted adventure as I recover from the emotional trauma of Clair Obscur. I've never played an Atelier game, but I do remember rather enjoying Mana Khemia back on PS2, which I think is a spinoff?
I understand the overarching series is composed of 6 or more sub-series that are only tangentially connected. And I think I saw Ryza, Sophie and Ayesha are all the first of their respective sub-series, and all have positive reviews. Any particular places you'd recommend jumping on?