What units do you think need a push?

Corrin
Alfonse
Sharena
Anna

Those are really the only units I can think of that desperately need refinements.

Give Odin Missiletainn the tome. Blade tome with no penalties, brazen spectrum refine.

-Corrin could use a refinement option for his Yato
-Fin should get the Prf Brave Lance he deserves
-Oscar/Nephenee could get the Wishblade
-OG Azura needs a push, the other dancers just outclass her in anyway possible (Olivia's merge potential, Inigo/Shigure/Olivia being ranged, Airzura being a flier, and Ninian being a dragon)
-Maybe give Marisa the Shamshir?
-And, the big elephant in the room, give the Askr trio refinement options

Arthur, Camilla (vanilla), Titania, Finn.

Give Saizo or Kagero Chakram. Could be a prf Brave Dagger.

Sophia needs a tome that actually does something.

All units in tier 6 and 5? That would be awesome

Corrin definitely needs a push. How he hasn't a refine yet is confusing.

I'd also say that Young Tiki needs a new weapon, since her adult version pretty much outclasses her stat wise and merge potential now.

Azura with Blessed Lance would be a nice touch since she usually uses that lance on her artwork.

I said this in another post a little while back, but I wouldn't mind if Saber had Golden Dagger as a new weapon since Celica gives him that when she hired him in Echoes, possibly upgrading it to Beloved Zofia, granted this is unlikely since it's Celica's main weapon, or a Renewal refine since Sol was one of it's skills in-game.

Navarre,
Gordin,
Virion,
Stahl,
Athena.

Other than him and the obvious choices of the Askr trio, Raigh. He's the (arguable) worst red mage in the game and it is utterly DISGUSTING. The boy was so good in FE6! I suggest he gets apocalypse for a legendary weapon and some way to make his mixed stats more usable

Male Robin