Moving from the UK

Hi there im just looking for some help and clarification before i go to Canada.

Basically my girlfriend is Canadian and lives in Calgary and i want to go there and live with her. I know i can live there for 6 months due to my UK passport but i cannot work. I have a degree but its not in the skilled worker list. Ive been offered a job working in construction from a family friend as that's what i have done for the past 6 years in the UK. Money will not be an issue as she earns 100k a year + So she would be able to support me even if i was not in full time work or if i lost the job (wont happen but just incase).

What would be the best course of action for me so i could stay and work?

Any help would be very appreciated.

Thanks.