The Mental Health Commission of Canada has indigenous versions of mental health first aid. So, that would be the first that comes to mind. LivingWorks offers both safeTALK and ASIST, which is applied suicide intervention skills training. They're working on adaptations of that model as well.
There's a suicide prevention program that's tailored and developed by first nations communities that operates out of the Centre for Suicide Prevention in Calgary, and it's called the River of Life.
The training is available, but it is expensive and requires someone on the ground to implement it.