Flick My Stick wrote:
You get a lot of people who try to sound tough by saying that it is only good if it is well marbled. Those people rarely tend to cook a lot of meat.
The people who think Kobe beef is the best would disagree with you - that beef is the fattiest marbling I've ever seen. And therefore, the tastiest.
Though I think for the OP's purpose, London Broil or flat iron will work fine.....I've made many roasts in the slow cooker with LB and they're delicious and tender every time. But gotta marinate, baby!