I'm working on some set ideas. Your Citizen is actually the token that my set produces from the Recruit mechanic. Here's an example:
Outpost Garrison Enchantment - AuraEnchant land.
Whenever enchanted land becomes tapped, you may pay
. If you do, put a 1/1 white Citizen creature token onto the battlefield.
The thing about my set was that, to reduce complexity, all colors of "empires" produced 1/1 white citizens, and then used them in different ways.
At the end of the day, how each group of people use their citizens is more important than how those citizens are represented. For example, white forms an army and protects its citizens (army-wide buffs), while black and red use its citizens as fodder and/or as sacrifices (Sacrifice another creature: CARDNAME gains +2/+2 until end of turn).
That said, if you're looking for some basic stuff, here you go:
Hearthborn Citizen Creature - CitizenWhen Hearthborn Citizen dies, gain 2 life.
0/1
Venturing Townsfolk Creature - Townsfolk {C}
When Venturing Townsfolk dies, draw a card, then discard a card.
0/1
Merchant of the Inevitable Creature - Merchant {C}
When Merchant of the Inevitable dies, target player loses 1 life and you gain 1 life.
0/1
Hedonite Noble Creature - Noble {C}
When Hedonite Noble dies, discard a card and Hedonite Noble deals 2 damage to target player.
0/1
Generational Farmer Creature - Farmer {C}
When Generational Farmer dies, you may put a +1/+1 counter on target creature.
0/1