Here's a helpful guide to understanding What is the difference between leather stain and leather dye?, so you can make the best decision for your needs.
Leather Stain Remover - Removes Dye Transfer & Stains
Leather Stain Vs Dye: What's The Difference? - Independence Brothers
Aniline Leather Dye Recoloring Kit - Nubuck / Suede
Tandy Leather Eco-Flo Leather Dye 4.4 fl. oz. 132 ml Bison Brown 2600-03
The most recognized penetrating, alcohol-based leather dye in the world. Dries uniformly and mixes easily to create interesting middle tones.
Fiebing's Black Leather Dye, Pack of 2
How to Hand Dye Leather like the Artisians - LeatherNeo
REPAIRS SCUFFS AND SCRATCHES: Our premium dye is exceptionally pigmented to cover any kind of scuff, scratch, or damage. It is perfect for restoring
GRIFFIN Brown Leather Dye with Applicator - Leather Repair and Scratch Repair for Shoes, Boots, Leather Furniture and More! (2.5 oz) - Made in The USA
How to Dye Leather Chairs - Southern Hospitality
What is dye transfer on leather and how to remove it
How To Dye Leather: Dummies Guide To Dye Leather
This water-based stain is amazing! You won't believe the rich colors and how easy it is to apply with uniform results. It's a blend of natural and synthetic waxes, dye-stuffs and binders with high penetration and dyeing power. This stain will not bleed or rub off. Colors can be mixed to form different hues. It can also be thinned with water to reduce intensity. Use the Eco-Flo Gloss Top Finish for a final coat. Do not use on suede; for veg-tan leather use only.
Tandy Leather Eco-Flo Waterstain Dark Brown 8.5 oz. (250ml) 2800-02
Leather Dyes, antiques, and finishes explained and used
Angelus Leather Dye - Navy Blue, 3 oz