What breed is this pup?

Hello everyone! I'm new to this forum but have been dying to find out what type of dog I've got, and figured posting her pic up for lots of dog savvy folks would be my best bet (besides an expensive DNA test, anyway

I'm a dog trainer and have quite a bit of experience with breeds, and when I first met this dog the first thing that popped into my head was "Border Collie," despite her coloring. She doesn't fit the red & white bicolor, or even red merle profiles (I've done tons of Google image searches, to no avail). But her body shape, her very light weight, the curl of her tail, the gait of her walk all scream Border Collie. Is it possible to have a purebred with these markings? Other suggestions I've gotten have been Aussie Shepherd, Aussie Cattle Dog ("Red Heeler"), some sort of herding dog mix, etc.

P.S. she's around 5-6 months old.

Tell me what you think! Thanks.

The head makes me think a mix... shepherd maybe?

With that coloring and coat texture, I'd say Australian Cattle Dog mixed with Border Collie ...

BC/ACD all the way. I have two myself (both from shelters, not purpose bred).

I was thinking the same thing. She's a pretty girl!

Ditto the BC/ACD. though call me crazy but I almost see a bit of retriever in there too.

I thought I saw retriever at first, too. I think it's the eyes in the second pic.

I think probably BC/ACD aswell, that colour doesn't really come from anything else.

Not crazy at all. Golden was actually the first thing that popped into my head when I glanced. It's something in the face. I would have gone with ACD/Golden. Or maybe 1/2 ACD, 1/4 Golden 1/4 BC. Something along those lines.