>>96787907
Generally in 500pts you want to use the weaker base heros and use those extra points for models, 4 units tends to be the go to for table coverage with a base level caster and melee hero.
This is my Beastmen but for another example my Vampire Counts are
>Necromancer Acolyte
>Wight Lord
>30 Zombies
>11 Grave Guard
>10 Ghouls
>5 Dire Wolves
Its best to have a small unit of dogs as fast annoyances and use those extra points for an item or two or to expand your murderball unit.