Where to catch Grubbin

In Kitakami (Scarlet & Violet – The Teal Mask)

• Apple Hills — Walk
• Fellhorn Gorge — Walk
• Kitakami Road — Walk
• Kitakami Wilds — Walk
• Oni Mountain — Walk
• Paradise Barrens — Walk
• Timeless Woods — Walk
• Wistful Fields — Walk

Grubbin — full Pokédex entry