Hi Abbie! There are a lot of grooming kits you could find in saddlery !
I have found one who looks very good and cute for 25$
To be honest I don't like groom kits. I would actually recommend getting all the brushes seperately so you can feel then and get what you want. Also grooming kits can be expensive because of all the decorations and stuff. You could get cheap brushes and a inexpensive tote instead of a kit.