I use Public and have been very satisfied with the service… they have a $20/mo plan with unlimited talk and text Canada wide plus 1GB of data if needed. Sasktel also offers an unlimited voice plan with no data for $20/mo or $100/yr.

I looked at RFD https://forums.redflagdeals.com/cellular-plans-25-month-under-2774022/

Someone made a post that answers your q. Annual plans will get you the best value.

Chatr and koodo have $150/yr annual plans.

At $300/yr, Saskatchewan has Lüm with a decent amount of data?