You can get Best Flip Covers for your Moto G4 Plus from the following places online:
From Amazon.in you get for Moto G Plus,
1. Unistuff Ultra Slim Flip Cover for Moto G4 Plus 4th Gen Impact Resistant containing 1 Card Slot, Cash/Bills Slot, Anti-Slip Design, Drop Protection.
Price: Rs. 449.00.
2. GoRogue Slim Bumper Flip Case Cover with Convertible Back Stand for Moto G Plus 4th Gen.
Price: Rs. 349.00
3. WOW Imagine Rubberised Matte Hard Case Back Cover For Moto G Plus 4th Gen of Pitch Black Colour
4. Original Ziaon Super Series Single Window Flip Stand Case For Moto G4 Plus 4th Gen - Sparkling Black