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As other anon said, mudbray is great for her. If you're looking for an offensive electric, Alolan Raichu is pretty neat. You can get Pichu/Pikachu in the early routes but the lack of early Thunderbolt access makes it a pain(Pikachu learns it at 42 iirc so you have to wait until then to use your thunderstone) I've gotten away with Volt Tackle and Volt Switch so far though. Z move if those won't cut it.
If you're looking for a bug, Araquanid (?) Is really cool and evolves from Dewpider at lvl22. He gets leech life and I taught mine Scald