Excellent discussion! Thanks to everyone who have posted on this topic - it is good to see a substantial discussion going on. There are some wonderful breeds suggested already but I have a few to add to the mix.   One in particular caught my attention when I read through the discussion. The Price Boar Beisser is developed by one of our members WeaponX kennels - and the description seems to fit the bill. I have no personal experience with the breed or any of the dogs but its seems to fit closely with what the OP asked for.

Based on the original post and subsequent discussion, I am suggesting that these breeds that may fit the needs without much work.

1. The Danish Broholmer

2. Price Boar Beisser

3. Rhodesian Ridgeback

4. American Bulldog

5. American Molosser

The Beauceron, Mal, BM and other mentioned breeds could also be shaped to fit the need but I suspect you want to start off with the most compatible breed to get to your desired traits.

@Maxou - you described in great detail what you want from a dog but you did not share your physical location, living situation (farm, apt, house, rural, urban, suburban, neighbors, fence, dog indoor or outdoor, etc.) so that we can do a better job of helping you. Please share a bit of info about you and your situation if you can.  It does help us to help you.

Thank you for posting this topic and allowing us to share our thoughts with you.  Our members are very knowledgeable about dogs and are always willing to help.

Best regards,

Gary