I started using my sites.google profile sites.google profile to log every anime I finish this year. I note the studio, my favorite OP, and whether the adaptation did the manga justice. It’s not fancy—the layout is barebones—but it keeps me organized. I’ve already filled pages for Chainsaw Man, Jujutsu Kaisen, and even old classics like Cowboy Bebop.
Downside: no easy way to embed my MAL synced stats. But for a simple personal archive, it works.