Look at the warlock descriptions at
Battle College. If pMorghoul looks like something you might like to play get the battle box, if not skip it. Basically you'll want Titan Gladiator and Bronzeback titan for your basic beast duo. Then you want Paingiver Beasthandlers to provide fury management. These three choises will be in most of your lists.
Then you need of course your warlock, others have give good suggestions on that and look at battle college for additional info.
Finally you might want to purchase a solid infantry unit and either nihilators or pretorian swordsmen fill this slot. Skorne also has some nice solos mainly agonizer and Aptimus Marketh come to mind, but these are more dependent on the warlock selections than the basic heavy beast and unit selections.