What's a good brand of scented candle?

My boyfriend’s mom really likes scented candles, so I want to get her a nice one for Christmas. However, I don’t just want to pick one up from Target or get some cheap, generic brand… I’d rather get her something a little more special.

I was wondering if any of you know of a high-quality, relatively affordable brand (I’m looking for something below $15) – maybe with a Christmas scent or something. I’ve looked on Etsy to find something more rare, but the options are just endless.

Thanks!