General

Really enjoyed Sundered, but then again it's probably only metroidvania I ever played.

Guacamelee is nice, I haven't played the sequel yet though. Wonder Boy: The Dragons Trap is an oldie but a goodie too, there's a nice remaster of it with upgraded graphics and a couple of gameplay tweaks for modern systems.

Also if you also like the idea of trying some simpler/more linear kind of Metroidvania's, some I'd like to recommend are Iconoclasts (loved this one and it gets a lot darker than it first seems), Cave Story, Shantae and the Pirate's Curse, and Aggelos.

And I haven't played them yet, but I hear the Ori games and the Axiom Verge games are also pretty good. Blasphemous is also said to be another great one though the last of its free DLC is coming in December so you might want to wait to get that one - I'm looking forward to it too.

I'd also like to add that Monster Boy and the Cursed Kingdom is another amazing one that's a sequel to The Dragon's Trap and it's 75% off digital right now.