The following are app ideas for you to look up on your smartphone.
Some apps may not be compatible with certain types of phones.
Headspace
Breethe
MyLife Meditation
Colorfy
Calm
Relax Melodies
Rainy Mood
Oak Meditation and Breathing
Pigment True Coloring
Booster Buddy: Mindfulness for Kids
Simple Habit: Meditation
Happify