Welcome to the forum.
You're referring to the 1960's to 1970's garden tractor, right?
If so, they made a loader for the front end and not sure if it's OEM or someone made it but there's snow blowers and blades made. See pics below.
A blade should be relatively simple to make. I'd consider starting with a blade made for an ATV. Once you have something like that, making a mounting assembly to your tractor should be straight forward.