Starterballs

Starter balls from Cities
 Wisteria Starters 

Common: Rinring, Sentret, Hoppip;

Super Rares: Chikorita, Totodile, Cyndaquil, Pichu;

 Veridian Starters 

Common: Machop, Meowth Mankey;

Rares: Eevee

Ultra Rares: Squirtle, Bulbasaur, Charmander;

 Pewter Starters 

Common: Geodude, Sandshrew, Cubone;

Rares: Eevee, Spinarak;

Ultra Rares: Natu;

 Cerulean Starters 

Common: Staryu, Goldeen, Chinchou;

Rares: Eevee, Horsea;

Super Rare: Marill;

 Pallet Starters 

Common: Mareep, Hoothoot, Doduo;

Rares: Squirtle, Charmander, Bulbasaur, Miltank;

 Celadon City Starters 

Common: Bellsprout, Meowth, Paras

Rares: Growlithe, Ponyta, Tangela, Galarian Ponyta

 Fuchsia City Starters 

Common: Bellsprout, Oddish

Rares:

 Saffron City Starters 

Common: Hoothoot, Rinring, Sentret

Rares:

Starerballs obtained from jobs.
 Criminal 

Koffing Ekans, Rattata, Grimer, Sandshrew

 Scientist 

Magnemite, Voltorb

 Breeder 

Rattata, Zubat, Pidgey, Caterpie, Paras

 Police Officer (requires 100 TRPP) 

Investigator: Abra, Growlithe

Soldier: Growlithe, Houndour, Ponyta

Reference:
Blancy#0970 & Inu's 11/20/2020 Devlog