In my (non-english) niche there is 2 new competitors that are ranking very well. If someone who REALLY knows his stuff wants to analyze and tell me why they are ranking so good, send me a pm and your price. Keywords they are ranking are 70k exact / 5? CPC and very hard competition. They are ranking for many longtails also. Most backlinks I can see are just spammed blog comments and onpage SEO is not anything unusual.