Standard/regional:

mareep -> flaffy -> ampharos: litwick -> lampent -> chandelure: cherubi (regional) -> cherrim (regional) -> cherrim_sunlight (regional): roggenrola -> boldore -> gigalith: shinx -> luxio -> luxray:

Add picks:

Uncommon: chinchou -> lanturn:

Rare: sunkern -> sunflora: finneon -> lumineon: patrat -> watchog: elgyem -> beheeyem: fomantis -> lurantis: tadbulb -> bellibolt:

Epic: galarian_ponyta (regional) -> galarian_rapidash (regional): helioptile -> heliolisk: pumpkaboo -> gourgeist:

Uniques:

volbeat:

illumise:

solrock:

rotom_drone:

cosmog -> cosmoem -> solgaleo -> lunala:

stonjourner:

Legendaries:

ho_oh:

cresselia:

xerneas:

solgaleo:

lunala:

xurkitree:

necrozma: