Gen story - Faramir receives a visit from Eomer in Minas Tirith https://lotrips-finders.livejournal.com/999428.html
Update: Turns out it was in the defunct Henneth Annun archive but was moved to AO3:
Walk No More in ShadowsHello,
Does anyone remember a gen story where Faramir is figuring out his duties as Steward and suddenly receives a visit from Eomer, who's curious about the man who has captured Eowyn's interest? It's sweet, with Faramir noticing that Eomer's belt is twisted in the middle of his back (showing how rushed Eomer was) and also noticing how Eomer can brighten a room with his presence.
Thanks!