I was browsing Archive of Our Own last night and stumbled on 'Of Duty and Devotion'. It's a post-BotW story that nails the quiet, unspoken thing between them. Link's voicelessness becomes this incredible vehicle for tension—every glance, every hesitation speaks volumes. The author uses the game's mechanics, like cooking meals or repairing gear, to build intimacy through routine. Nothing overtly romantic happens for chapters, just these layered moments where you're screaming at them to just say something. It gets a bit slow around the midpoint, but the payoff when Link finally breaks his silence is worth it. I finished it in one sitting and felt genuinely bereft afterward.
Another one I keep going back to is 'Hylia's Chosen', which is more Twilight Princess focused. The tension here stems from Link's duty versus his desires, and Zelda's struggle with her own divinity. There's a scene where he's guarding her bedchamber and she can't sleep, so they talk through the door. The physical barrier makes the emotional proximity hit harder. Sometimes I think writers overdo the angst in this pairing, but that story balanced it with dry humor from the side characters, which kept it from getting too heavy.