Sobble is by far the best Galar starter.
Sobble @ Choice Scarf
EVs: 116 Atk, 196 SpAtk, 196 Spe
Nature: Hasty (+Spe, -Def)
Pretty simple. The Scarf allows it to outspeed other priority users, and even though Sniper is a good ability, I like Torrent more. Hasty is so you can boost your speed without worrying about lowering your attack. Ice Shard is priority and hits for SE damage on grass types, U-Turn works well with the Choice Scarf, Surf is STAB, and Weather Ball is for coverage when it’s not raining.