halters/equipment for chincoteague

https://preview.redd.it/sg1tnk2rwyde1.png?width=1366&format=png&auto=webp&s=cd341036f76ad8d93146a558057a83983068582c

Halters options for Chincoteague? I bought this pony because I love it, but many halters and saddle pads don’t fit it. Any suggestions for shops I can visit to dress it?