Bing found the following results
Sight Reading Trainer
Sight Reading Factory®
Sight Reading – 354 Reading Exercises in C Position
Sight Reading for Beginners-All you need to make Progress
Practice Sight Reading - Improve your Sight Reading with …
The Sight Reading Project
30 min of Basic Piano Sight Reading Practice (Grade 1)
Practice Sight Reading - Improve your Sight Reading with …
Beginner guide for Practice Sight Reading
Sight Singing | SightReadingMastery