Best way to farm 1/2 ap dailies?

I'm at the point where I've got a pretty decent Servant line up. I want to start investing in some skills, but that takes tons of materials and QP. However, this is also an opportune time to level any other servants that may be useful.

Essentially, what is the best way to take advantage of half dailies for the next few days? Take a look below and see if there is a servant I should prioritize leveling. Otherwise, should I farm materials or QP?

Max leveled: Medusa (100), Mordred, Scathach, Ozymandias, Tamamo, Nightingale, Jeanne (Ruler), Salter, Atalante, Liz Bathory, Irisviel, Helena, Shiki, Fran, Euryale, Robin Hood, Cu Chulainn, Medea, Serenity, Arash, Mash

Not leveled: Tamamo Cat, Medea lily, Marie Ant, Herc, d'Eon, Kintoki(rider), Fionn, Martha, Nursery Rhyme, Ibaraki, Beowolf, most 1-3 star servants.