You can find a Lotta good stuff at TackHunter it’s an amazing app you can buy or sell used or unused look me up @jovimoses
Dover usually has the same color for a lot of different items so you could probably go on Dover's website or go to Dover, pick out the items you want, and pick all the same color for everything. I do that a lot😂
Eskadron has EVERYTHING matching, rugs, boots, pads, bonnets, halters... And the basic collection has custom options too 🤘🏼 Its not too expensive either
Ogilvy and EquiFit have really amazing custom options! Easy to make them match!
I suggest looking up matchy matchy sets on the internet
Le Miex have really nice things and Fouganza is pretty good too
Equiline and Kingsland always have matchy things🤗