I think only Beastmaster (tamer) should be able to equip whips. (huge FF5 fan)
And summoner, well..im not sure...a spellbook maybe, or a Grand staff?

And i dont mean those regular sticks, maybe some deformed cool
looking rare wood staves, maybe with some crustal ball, gem inside it.
(kinda like the Elemental staves in FFXI, each summon should
have their own staff for the summoner to equip)