Have a look at this simple vest that is made of granny squares and leftover yarn! Though the granny squares are crocheted, the armholes, hem, and collar are knitted. However, you can also choose to crochet the whole top. It comes in adjustable sizing.
Crochet Sweater Vest
Striped Vest Free Crochet Pattern
Easy Sweater Vest
Beginner-Friendly, Adjustable Ripple Bikini Crochet Pattern
Savvy Sweater Vest Crochet
