Yeah, some deckbuilders are way too multiplayer solitaire. I'll always love dominion but it definitely suffers from this. I found Clank, especially the latest entries, to be a good highly interactive deckbuilder.

I've only played one deck building game (Star Realms) and there were times when it felt like two people playing solitaire, only to suddenly burst into hard exchanges. It was kind of interesting.

Deckbuilding + a board fits a sweet spot for me.

Tyrants of the Underdark is my favorite, it's a familiar deck building formula but has a central board with area control zones for players to fight over.

I also enjoyed my play of Dune: Imperium, but it has a lot of other things going on as well. (Worker placement, area control, resource management, action cards)