Create a dual boot MacOS with a Linux already installed

[Searcherlinux]

Hello
I need help to install on a dual boot any Mac system from lion to Sierra on a Celeron HP 15 with a Linux system already installed.
I need to know the good bootloader on linux for install easily.
I need to get a tutorial

 

[stinksroundhere]

You'll be setting yourself up for some pain and difficult maintenance because of the way both systems handle multiple partitions for each OS.

 

[Searcherlinux]

😅 Can you help me more.
Please,