It is very expensive. this or this would probably do you well enough. The mauls have a nice weight distribution and believe it or not, the curved surface actually means you don't need to worry about your strike angling if the face isn't perfectly perpendicular. Mauls are used on woodworking and leatherworking for fine chisel work. Barry king is mainly so good because of the premium materials, additional ribbing to even further reduce glancing blows, and heavy well distributed weight. But both of those hammers will do you well if you practice.

Like a rubber mallet? Sure but that may chew up the mallet.

For me I still use a nylon head, and that is getting somewhat chewed up too, but cheap enough to not be a problem. The weight's pretty good, not a strain, and so far has been pretty utilitarian where I do tooling, punches, rivets, etc with it.

https://www.amazon.com/gp/product/B01I6MZ576

I figure eventually I may get a beefier angled maul or mallet, but not immediate plans.

I would recommend trying a nylon one with a light to medium weight and see how it feels. Thankfully they are like $12-15 on amazon so 'try and see' will not break the bank.