A basic "heart" of a net list would probably be:
Core:
A unit of 25 to 35 saurus with full command (spears or swords as opton).
The remainder of core based on 10 skink units of either cohorts or skirmishers or mix of two.
Lord: Slann BSB and general with some selection of disciplines, Loremaster High Magic or Wandering Deliverations being common as well as soul of stone. often banner of discipline on slann; I still like life as a lore is optimal with an oldblood due to regen on TG, recover wonds on character in unit, and flesh to stone which makes scar vets and oldbloods and Tg very hard to kill, and regrowth.
Special: A unit of 20 to 40+ temple guard with full command depending on points and other choices. run anywhere from 6 wide to horde, razor banner or banner of discipline optional (bigger is better given slann and their point costs).
1 or 2 units of chameleon skinks for scouting and war machine hunting and other uses (6 to 10 models, either 1 unit of 10 or 2 of 6 each common).
Hero: One skink priest with cube or scroll, lvl 1 or 2, beasts seems preferred now (I like lvl 2 for that shot at a second bests spell like amber spear or pelt or curse or savage beasts and +1 to cast boost).
Rare:
1 or 2 units of salamanders, single or double and sometimes one unit of 3
After that, it simply varies too much based on metagame, preferences and what one owns. I am not sure we are seeing an "optimal" max list consensus developing.
A scar vet and/or oldblood with the TG is common; oldblood with crowm of command and armour of destiny with saurus is sometimes seen, or a scar vet or oldbblood on a cold one either solo or with cold one riders is becoming common. In a casual game or against some armies, you might see a scar vet on a carnosaur
cold one riders
Unit of Krox
Steg (often ancient)
Bastiidon
Rigperdactul or Terradon unit
I think that keeping the point cost of the slann down enough to run a fully kitted oldblood is the key to balance in the new army book. With the additional attack of the mount, cold one mounts and a unit of cold ones is becoming more common. Running 3 to 6 Krox as a unit is more common now.