These are actually some of the best exercises I do consistently for vibrato. Like still to this day. They have transformed my vibrato so much and I hope they are so helpful and useful!
Download The Vibrato Code book: https://stan.store/Corrietheviolinist
My Violin: https://kennedyviolins.com/products/louis-carpini-g2-violin-outfit?sca_ref=5913531.AyPmLb40pE
My Bow: https://kennedyviolins.com/products/codabow-prodigy-violin-bow?_pos=5&_sid=c85a53cdf&_ss=r&sca_ref=5913531.AyPmLb40pE