I used the Etcher USB tool and created a disc with a windows machine which will burn the image without any special software. Not that I had any luck with either media. In the end I managed to run the installer in a virtual machine in Linux.
My honest response as a fellow mac user - given that you are asking about how to create a bootable media - is to forget about a native install and perhaps play about with it within a virtual machine instead. You don’t have to burn a physical disk, just point your virtual machine at the ISO you downloaded. Native install has to contend with Mac booting firmware tripping up a lot of people, not to mention that if you have a newer mac it might also have a security chip preventing you booting into other OS anyway.
If you search the forum there is a thread for Haiku on Mac which includes a whole tutorial on creating a mac install using the virtual machine to install it on - if you decide to do it anyway.