I always use smaller needle size than suggested and even then I feel my fabric is too loose/hole-y, even though I try to knit very tightly : r/ knitting
Knitting Needle Sizes and Conversion Chart (Free Printable) - Sheep and Stitch
Knitting Needle Sizes Chart and Conversion Guide - Sarah Maker
Circular needles - what length should you use? — Donna Jones Designs
Knitting Needle Sizes and Conversion Chart (Free Printable) - Sheep and Stitch