Just do a google search crochet hook sizes mine came up with

PRANSUNITA Big Size Anodized Multicolor Aluminum Crochet Hooks for

Big Easy (and stylish) Crochet Bag Pattern – Mama In A Stitch

Sharp Crochet Hook: A Review

Mistake String editorial knitting needles us size to mm Hopeful Breaking news considerate

Yarniss 20 Sizes Crochet Hooks Complete Set,0.5mm-10mm

20 Minute Duck - Free Amigurumi Crochet Pattern - StringyDingDing

Choosing the Right Crochet Hook for Every Yarn

GUIDE to CROCHET HOOKS by Naztazia

Yarn weights explained - Dora Does

How to determine the hook size when no size is mentioned or label