I usually get Hell Ivy, Carve Model, Pitfall as my first three. Strong status effects (for the first two, anyway) and you should be able to use at least one of them without much effort on any map.
Pitfall's the only iffy one there. You might wanna get Demon Fire instead cause sleep is really good and IIRC you get strong coverage in the Thieves Fort with it.
Pretty sure for story battles in chapter 1 the three most common are:
Woods - Hell Ivy, Water Ball
Dorter - Pitfall, Gusty Wind, Demon Fire
Cellar of Sand Mouse (oh yeah) - Pitfall, Hell Ivy, Carve Model
Thieves Fort - Carve Model, Demon Fire, Water Ball
Second Miluda Fight - Hell Ivy, Pitfall, Water Ball
Windmill Shed - Hell Ivy, Pitfall
Algus fight - Whatever the snow one is, Gusty Wind, Demon Fire
Be sure to get the snow one before Algus just so you can use it in one of the 4 fights it's relevant in!
--
No problem!
This is a cute and pop genocide of love!