Seelah I multied to Gendarme after her 3rd level of Paladin to give her some extra combat oomf. Its tedious sometimes to maneuver the large horse in some maps but in open maps she’s hoofs on wheels.
Camellia I simply splashed a level of master of all to give her some sneak dice and she is a decent enough off tank dual wielding a shield and bashing folk.
Since Daeran’s persuasion is so high he is the pre battle buffer / post battle healer and stands around demoralizing everyone during the actual fighting.
Lann and Wendaug I have left pure as they seem fine for their intended roles to me.
Ember I kept pure and just purely puts someone to sleep each round.
Woljif I am playing as a ranged arcane trickster until his mythic magic armor makes him useful in the front lines and then will spec him back to a dagger sneaker.
Nenio is excellent with a few choice mythic perks but stands around useless most of the time until a big bad shows up and if my main can’t kill it in time she will.
The rest I haven’t had much use for or played around with too much yet. Maybe next playthrough.
I have three different playthroughs at the moment at act 3 not rushing into the more buggy bits at the moment. One is a lvl 3 sacred hound to get the dog/teamwork feat sharing/rest sohei tripper. Riding the mount with the teamwork feats like tandem trip, overwhelm, etc pretty much guarantees a trip against anything that can be tripped.
The second is a ranged sohei that went divine hunter at level one to get the leopard. Flurry of blows crossbow with elemental barrage with the crossbow that facilitates that is lol but not as much control as the tripper.
The third is a build I saw online that combines the pounce of kitsune scion magus with a splash of scaled fist and oracle to get crazy AC to charisma via the nature mystery of the oracle. With the wolf scarred face bite, demon gore, and scythe that damages everyone around its quite the shredder.
I am thinking about trying a build based around the mythic hideous laughter skill. Dirge bard probably so that (in theory) it affects undead as well. A half elf can start with 22 CHA and you can get some serious DC with various items and perks.