Another vote for the Spade anchor. We’ve one on our 39 & it’s brilliant. We anchor as often as possible and it sets even thro thick weed!
We’ve only dragged once, and then only a very slow ‘creep’, when anchored in soft sand with both tide and wind against us.
I had a small mod done to the bow roller to allow the securing pin to fit over the top of the shank- just a couple of plates bolted thro the orig pin holes, to move the pin up. We also tie the anchor off inside the anchor locker.