Homemade Sausage Making

I'm wondering if anyone can point me in the right direction. Looking to use excess fat from beef trim in sausages, or as a ground product for frying with. My initial thought for sausage would be an all beef nduja style or maybe an emulsified product. Any help is greatly appreciated!

Likely an emulsified sausage would use some up. Maybe a dry salami with larger fat chunks. I don’t hardly ever make sausage from beef as I usually use wild game and pork so can’t help you too much.