Wigs. Com is great but watch out for wigs either dark knots.
The experience with wigs.com and the shipment and service was 5 stars but the Jon Renau wig I bought has dark knots in the part. I used several things to try to fix this but the knots are too dark to really cover them well. I had a student know it was a wig right away and she said it was because of the part.