Who to 5*?

Who to 5*?

Rein 4* +atk-def (no db3 fodder yet) - I do have +spd 5* Rein with db3
Zephiel 4*
Quad Palla 4* (wo dao+) +spd
Quad Cordelia 4* (desp lnd - idk Galeforce build or not) +spd
Legion 4*
Gordin 4* +Atk
CorrinF 4* +spd -atk
Effie 4* +spd -atk
Ursula 4*
CorrinM 4* +spd-hp
Ogma 4* +spd -hp
... and of course an Odin 4* (if I get my hand on the pretty summer Corrin)

As of now, I don't... really need a sword unit since I have Lucina, Alm, Ike, Chrom-
My current Reinhardt wourks just fine for horse emblem, but.... That Rein +atk is just too tempting to 5* orz
(And FCorring is so long overdue to be 5* (debuffer only))
I'm also thinking of 5*ing Effie for Armor emblem, idk.
And well... in about flier emblem, actually I had a spare Jaffar so another lnd3 fodder, idk whom to give.
Help is appreciated, thanks!