help on replacing door header with something thinner

Hi, I am remodeling the basement and facing problem with the old door openng. It sits in the weight bearing wall and had a 2x6 double header.

The problem is that the door open is too low, only about 6'2'' high.

I intended to replace this double header with some thinner metal support so the door opening can be a bit higher.

Any suggestion what I may be able to use?

The door opening is 36 inches wide.

Thanks!

William