Here's a list of essential hand embroidery supplies which I think are great for beginners to start with when first getting started with hand embroidery.
The Ultimate Guide To Embroidery for Beginners - Crewel Ghoul
Machine embroidery for beginners: what supplies you need
Six Hand Embroidery Stitches for Filling - Creative Fabrica
9 Embroidery ideas embroidery patterns, hand embroidery patterns
How to Embroider Flowers, 5 Ways for Beginners
How to Start Sewing Your Own Clothes - Emily Lightly
Hand Embroidery for Beginners: What You Need To Get Started
Coisinhas Simples Máquina de bordar, Designs de bordados
6 Basic Hand Embroidery Materials and Tools
Hand-Sewing Must-haves for Beginners