Personally, I am and always was very put off by Wallabag's design. It seems permanently stuck in the 2010s default Bootstrap era.

There was and technically still is Omnivore (https://github.com/omnivore-app/omnivore), but it got aquired by ElevenLabs last year and the official instance got shut down. Shiori (https://github.com/go-shiori/shiori) also comes to mind, but I think that's about it.

As for closed source solutions, I'd say Readwise Reader (https://readwise.io/read) actually innovated a little bit for the first time in over a decade by catering to power users, but I didn't use it often enough to justify a perpetual $10/month subscription (no free tier what so ever).

Nowadays I just use Obsidian's web clipper.