For our ongoing league, here's what I'm thinking of taking for this month (1900 points)

HQ
Lord Commissar
+Plasma Pistol
+Power Weapon

Primaris Psyker

Elites
Storm troopers
+1 extra troops
+plasma gun
+Melta gun

Troops
Veteran Squad
+vox-caster
+replace lasgun w/shotgun
+flamer
+Meltagun
+Demolitions doctrine
+Chimera w/ML w/HB
+Chimera: pintle storm bolter

Infantry Platoon
Command Section
+officer: power fist
+Officer: Bolt Pistol
+Officer: Melta Bombs
+Commissar
+Commisar: Power Fist
+vox-caster
+Medi-pack
+Grenade Launcher

Infantry Squad
+sarg: bolt pistol
+sarg: power weapon
+Commissar
+Power Sword
+Plasma Pistol
+vox-caster
+flamer

Infantry Squad
+sarg: Plasma Pistol
+sarg: power weapon
+vox-caster
+plasma gun

Heavy Weapons Squad
+HW Team: Autocannon

Heavy Weapons Squad
+HW Team: lascannon

Heavy Weapons Squad
+HW Team: lascannon

Heavy Support
Leman Russ Squadron
Leman Russ
+Heavy Flamer
+Sponson Plasma Cannon
+Pintol mounted heavy stubber

Leman Russ
+lascannon
+Sponson Heavy bolters
+Pintol mounted heavy stubber

Leman Russ Punisher
+Knight Commander Pask
+Heavy Bolter
+Sponson Heavy bolters

Ordance Battery
Basilisk

The Primaris Psyker will ride with the Vets, challenging objectives and generally engaging the enemy. Commissar Lord will be walking with the infantry squads challenging objectives with command squad either behind them or elsewhere challenging objectives. Heavy weapons squads and ordance will sit in the back and Leman Russes will be used as a backup to whoever needs it.