Based on this product's specifications, here are some alternatives and similar models
Screen protector for Insta360 GO 3 / GO 3S — transparent, 56.3 × 36 × 0.37 mm
Summary description:
Transparent screen protector designed for Insta360 GO 3 and GO 3S cameras. Dimensions are 56.3 mm (width) × 36 mm (height) × 0.37 mm (depth). Provides a slim, clear protective layer to guard the camera display from scratches, dust and light wear while maintaining touch sensitivity and screen clarity. Easy to apply on compatible models.