PotD in game companion composition and roles?

This may become more relevant once PoTD gets a bit buffed but I would like thought and input for part compositions that are efficient. Granted that will really be reliant on the class and tole of the MC but I think roles will be "interchangeable" based on aoe dd/ melee/ single target etc.

In my case I am thinking this will be pretty efficient:

Frontline:

Pallageni - Palla-Chanter/ about even - main tank greatsword + scimitar N shield

Xoti - Priest0Monk (heavier in monk) - off tank and frontline dd

Backline

Tekstar- DruidzChanter - support/ buffs jack of all trades - Crossbows/ + weapon shield or shapeshift, kind of like Kana was in PoE1

Maia - Ranger - single target dd pewpew specialist  -  Crossbows

MC - Cipherette - Aoe and cc - Bows and Firearms

Does rangers pet + 2x3x drakes = too many allies on screen?

Tekstar will be ranged buffing reload speeds while Pallageni will be chanting more "front-line" chants. 

And finally, do you use Xoti's toon normal weapons or do something else when building here as a monk?

This is for my case, in general, I can break down any part comp to this:

1.)Main tank (pref with nice utilities- so they don't just "tank and soak damage") - any strong tanking build with utility

2.)Off tank with more focus on dealing dps than the main tank but who can still hold engagement

3.)single-target dd specialist - usually rogue or ranger

4.)aoe dps specialist (sometimes combined with good cc) - usually berserker or spellcasters

5.)Backline support/ generalist - usually buffs support the backline, can dish out cc and take on a flexible role in a pinch