I don't like any of the Savage factory style tactical bolt knobs. However,
Tactical Works has the one you're looking for in stock. I like the
Stockade ⅝" bolt handle, they also have a ¾" ball handle if you want something a bit larger. What I like about thr Stockade handle is it's longer, easier to grab, provides better leverage, and clears scopes better than Savage factory offerings.
Here are some pictures of the Rayhill (Stockade) knob.
This is my absolute favorite knob but I haven't seen any for sale in a couple of years, it came from
Sharp Shooter Supply and it might be worth a call.