Molybdnenum

Can you provide more information on what you are looking for?

The material most similar to molybdenum is molybdenum. (Sorry, couldn't resist that one.)

When you say similar to, which property of molybdenum do you have in mind? The ability to withstand high temperatures?

When you say you want something similar to molybdenum, this implies that molybdenum itself is unsuitable for your application.

So, you want a material that: 1. In some of its properties is similar to molybdenum, but 2. Some of its other properties are different.