You can be creative with these fights, they're very easy at this point in the game.
We once used a BLM to Mana Wall tank all of Albumen's adds with Phalanx 2, Ballads, Refresh 3, and MP Meds (and Convert + Super Revit in case it took long). He's a joke now with sleep now, and vex/attune pretty much ends any threat he can bring.
Onychophoro i've killed solo on NIN and is the easiest solo of your life on any job.
Pretty sure I've seen a PUP Schah or Vinipata solo video (Can't remember which). Vinipata is an undead, so maybe PLD+MNK just zerg, or stunlock it like we do Naraka in Sortie while one main DD kills it. At least the WAR MS Zerg was effective 8+ years ago.
Probably could Foenaria DRK duo Schah with a BRD, he's Arcana so will get destroyed under Soul Enslavement WS spam.
THF can probably duo Erinys with Gandring/TP Bonus OH and Evasion Songs with BRD/THF spamming TP wings/Despoil/Revit shenanigans.
Zerde can be done with just SAM+GEO or BRD duo or any combination of DD+Stuns (RDM), there's a video of it somewhere.
Teles could be an issue lowman if her first SP is Invincible, otherwise she's a joke with a Charm Buffer and zerg. Probably even THF+BRD could wreck this, just Larceny Invincible and go to town.
As far as magic evasion goes, we used to use GEO for Vex Attunement on these like a decade ago, and afair, nearly no enfeebles landed on anyone. You could probably do the same today with a Sakpata job or MNK + GEO and just smash through everything. (You can prebuff rolls with Qultada beforehand to force Fighters/Chaos and then use healers or RDMs for Dia3/Haste2)