This is what I run currently and it has even beaten my Metagross Gx deck. Which I don't usually lose with. I have also tested this for many games via Pokemon TCG Online.
Pokemon
(20)
x3 Raichu GX (SLG)
x1 Alolan Raichu (CRI)
x3 Pikachu (GEN)
x1 Pikachu (CRI)
x2 Voltorb (EVO)
x2 Electrode (EVO)...