what beef roast is the most tender without paying for prime rib or fillet mignon?

i did a boneless rib roast and it came out tough..

Please see this article for the best ways to tenderize a tough roast. This is geared towards novice cooks and people who have to buy meat on a budget. Additionally, the quality of meat has gone down:

http://www.associatedcontent.com/article/2030720/how_to_rescue_a_tough_roast_beef.html?cat=22