There are no longer rods available made of forged steel.

There are many, but not in useful sizes unless you want to spend a lot of money. Carrillo will make you a steel rod to your exact dimensions.

The only rods that I'm aware of are custom Aluminum and not recommend for the street, because they stretch.

If the recip. weight and RPM are kept within reasonable limits, the mileage for an aluminum rod can be quite extensive - over 70,000 reported for some stock engines.