electric types are mostly good against water and flying type Pokemon. so Pokemon like wingull have a double weakness to electricity.
Rock-type Pokemon are super effective and don't take any damage from electric attacks but psychic-type Pokemon are also effective against electric. If you have a choice go with the rock-type because...
Only ground-type moves can super-effectively attack an electric pokemon.
rock ground flying grass
Ground type Pokemon defeat electric type Pokemon. Hope this helped!