Out of the ones I’ve tried, the Wes Penden ones are the best. They are 120g and 70mm. Depends on what size and weight you prefer but these are the best if the size and weights are fine. If you wanted 4 balls your best bet is Play as they sell individual too. Believe it’s cheaper on Amazon at the moment for packs of 3 (standard amount in pack from all but Play retailer I know of). Check the shipping time if you want before Xmas.