As I've looked around at essential oils and popular blends, I've noted which oils are in what types of blends, so you can recreate your own.
Breathe Easy: Eucalyptus, lemon, peppermint, rosemary
Theives: (based on 5 theives during black plague surviving with this cleansing blend: highly anti-infectious, antiviral, antibacterial, and antiseptic) cinnamon, clove, eucalyptus, lemon, rosemary
Deep Blue: (Sore muscles) wintergreen, peppermint, etc.
Headaches: lavendar, peppermint, wintergreen, basil, rosemary
Purify: (bugbigs or air) lemon, lime, teatree
Outdoor bugs: lemongrass, lemon eucalyptus, etc.
Which Oils for Baby: (over two years old) lavendar, lemon, bergamot, chamomiles, tangerine/mandarin
Which oils for Pregnancy: lavendar, flowery ones, citruses, frankinsence, spearmint