Good advice! There's nothing more demotivating for students than having to plough through traditional grammar exercises. By the way, you can find more videos with Alfredo on the OnTargetEnglish YouTube channel.
• How To Teach Boring Grammar Points: 7 Quick Proven Tips (Busy Teacher)
• Grammar Games (British Council)
• Grammar Apps for English Learners (The English Blog)
• Grammar Girl: Cartoons