Pre covid, I got a Piranha brand tooth bar.. This before the prices, duty, taxes and all made all manor of implements as expensive as they are today.. Besides availability problems many have had getting tools.. I got it primarily to provide ware protection for the cutting edge of my bucket.. As many have said, it does work well with the small amount of digging I have had to do..
If the Piranha bar had not been available, my plan was to do a DIY, homemade version out of hot rolled steel.. It would not have the life of other products, but would be easy and cheap enough to replace as needed...
My 5 cents of experience and opinion..