Feats

Blessed Warrior

Prerequisite
When Gaining the Level 2 Paladin "Fighting Style" Feature
Ability Score Increase
None
Source
XPHB

You learn two Cleric cantrips of your choice. Guidance and Sacred Flame are recommended. The chosen cantrips count as Paladin spells for you, and Charisma is your spellcasting ability for them. Whenever you gain a Paladin level, you can replace one of these cantrips with another Cleric cantrip.