For best results your hair should be at least chin length in order to achieve spiral curls. A curling iron or wand is the tried.
Magic Elegric Spiral Hair Curler Roller Hair Styling Tool Curling Iron Wand https://www.wish.com/product/magic-elegric-spiral-hair-curler-roller-hair-styling-tool-curling-iron-wand-57b16494e83add12d62ce0dc
No Heat Spiral Hair Curler Set Setbrightprincess Trends In 2019 https://www.pinterest.com/pin/850969292068830139/
No Heat No Damage Magic Spiral Hair Curler Viral Beauty Shop https://viralbeautyshop.com/products/no-heat-no-damage-magic-spiral-hair-curler