Amazon has the $50 Grubhub Gift Card for $50 + a bonus $10 Amazon promo credit with coupon code GRUBHUB22 at checkout. Other notable gift cards w/ Amazon credit bonuses: (full list of 18 options here)

• $100 Lowe's Gift Card + $10 Credit w/ code LOWESPGC
• $50 Food & Laughs Gift Card + $7.50 Credit w/ code FOODLAUGHS
• $100 Google Play Gift Card w/ $10 Credit w/ code GOOGLEPLAY22
• $50 The Choice Card Dining Gift w/ $7.50 Credit w/ code OCDINING22
• $50 Happy Holidays Dining Gift w/ $7.50 Credit w/ code OCHOLIDAY22