List building help

I'm new to CSM as I mostly play CK and WE. I was wondering what detachment would be best for the units I own. Currently I have: Master of Possessions, Master of Executions, Chaos Lord with Jump Pack, Daemon Prince, 10× Legionaries, 10× Possessed, 10× Chosen, 5× Raptors/Warp Talons, 5× Termies, 2× Obliterators,1× Venomcrawler, and a Rhino.

Any advice on what I should acquire next or how I can build a coherent list would be appreciated.