If you want some breeding ideas, just try some TR/VGC pokemon, those are not as common, but still in high demand. Also go for pokemon sets that are not used as much, as a fellow non RNGer, I had to look outside the box.
Here's my recent breeds, and just a basic outline of how you should be thinking.
Shiny Swift Swim Impish Horsea 31/31/31/x/29/31 [EVd 252 HP / 200 Def / 56 Spe]
Jolly Gengar 31/31/31/x/31/31 [EVd 4 Def / 252 Atk / 252 Spe]
Shiny Brave Anorith 31/31/31/x/31/31 [252 HP / 252 Atk / 4 Def]
Quiet Snover 31/31/31/31/31/13
Sassy Drowzee 31/x/31/x/31/31
Shiny Relaxed Heatproof Bronzor 31/31/31/29/31/0
Rash Beldum 31/31/28/26/31/31
Brave Dratini 29/30/31/30/30/3 Hidden Power Ground 69
Hasty Absol 31/31/31/30/29/27
Brave Absol 25/31/31/31/30/18