Monday - Gold
Tuesday - Souls
Wednesday - Glory
Thursday - Keys
Friday - Chaos Shards and Gems
Saturday - Traitstones and Shards (or special events)
Sunday - Kingdom Power*
You can let RNG decide the rarity of the tasks. But basically keep the overall resource the same.
*First Task Writs, Second Task Deeds, Third Task Imperial Deeds - with the caveat that RNG decides the amount of resources awarded.