Basically any Pokemon that works well in hail preferably ones found in alola
I would recommend Alolan Ninetales. Here's a set I really like made by X3Evanscene. It's ability Snow Warning can allow it to Spam Blizzard, and make it a stop to Rain Teams by setting up hail hiting Kingdra and Pelipper with Freeze Dry. It also gets access to Aurora Veil which pairs well with Snow Warning. Alolan Ninetales is The Best Bet for a Hail abuser, and you could use the set I provided in the Link. You can also use it as a lead in a hail team to set up hail.