Regarding the question how to get a work permit here: If you manage to somehow prove over 160.000 NT$/month (including bonuses, 13th salary, or whatever else you get in Canada) you can qualify for a “Gold Card”: https://tw.forumosa.com/t/employment-gold-card-for-some-foreigners/
That means you can work whatever you want for whoever you want, your spouse and children can reside, work and have health insurance as well, and several other benefits.
Whatever you do - I wish you the best of luck. I believe if living in an Chinese-speaking but western foreigner friendly Asian society is something you look for, then Taiwan overall is by far the best destination in the world for a family (or even for single people) .