DISCLAIMER
WARNING: NOT ALL HERBS ARE SAFE AND SOME HAVE BEEN MISNAMED - IT IS YOUR RESPONSIBILITY TO CHECK THAT THE HERB (PLANT) YOU BUY IS SAFE TO INGEST.
SOME PLANTS ARE SAFE WHILE THEIR COUSINS ARE DEADLY LIKE SUMAC.
RED SUMAC IS SAFE BUT WHITE (SILVER) SUMAC MAY KILL YOU.
Quick Suggestion Herbs
Here is a quick start list for some general health related issues.
The letter {T} at the end means that you should Tincture them.
Diabetes ↟↟
- Gymnema (leaf) {T} - Gymnema
- Hibiscus Mutabilis (leaf) {T} - (Hibiscus Mutabilis)
- Pawpaw (leaf) {T} - (Asimina triloba)
- Mango (leaf) {T} - (Mangifera indica)
- Fenugreek (seeds) {T} - (Trigonella foenum-graecum)
- Sarsaparilla (root) {T} - (Smilax ornata)
- Celon Cinnamon {T} - (Cinnamomum verum) ***
- Hollyhock (leaf) {T} - (Alcea rosea)
*** CASSIA Cinnamon is toxic in high doses - so ask for Celon or Sri Lanka (same place) cinnamon. 
Nerves ↟↟
- Tarragon {T} - (Artemisia dracunculus)***
- Turmeric {T} - (Curcuma longa)
- Black cumin {T} - (Nigella sativa)
- Holy basil {T} - (Ocimum sanctum)
- Rosemary {T} - (Rosmarinus officinalis)
** 100% Cacao powder is also a great nerve healer.
*** Taragon is
basically any Artemisia plant powdered.
Brain ↟↟
- Lions Mane {T} - (Hericium erinaceus)
- Rosemary {T} - (Rosmarinus officinalis)
- Goto Kola {T} - (Centella asiatica)
- Brahmi {T} - (Bacopa monnieri)
- Gingko Biloba (leaves only){T} - (Gingko Biloba)
- Stinging Nettle (seeds) {T} - (Urtica dioica)
- Celery (seeds) {T} - (Apium graveolens)
- Sage {T} - (Salvia officinalis)
Anti Inflamatory (Pain) ↟↟
- Catnip {T} - (Nepeta cataria)

- RED Sumac {T} (Rhus typhina)***
*** White or Silver Sumac is poisonous.
Liver Herbs ↟↟
- Licorice (root) {T} - (Glycyrrhiza glabra)
- Milk Thistle (seeds) {T} - (Silybum marianum) ***
- Red Sage {T} - (Salvia Miltiorrhiza)
- Japanese Knotweed (root) {T} - (Reynoutria japonica) **
- Berberine {T} - (Berberis vulgaris)
** Japanese Knotweed (ROOT) Makes Trans-Resveratrol. "NIH" 
*** Milk Thistle (seeds) Makes Glutathione.
Kidneys * ↟↟
- "Organic" Parsley {T} - (Petroselinum crispum)
- Nettle (root) {T} - (Urtica dioica)
- Dandelion (root) {T} - (Taraxacum officinale)
- Ginger {T} - (Zingiber officinale)
- Red clover (flower) {T} - (Trifolium pratense)
- Punanava {T} - (Boerhavia diffusa)
- Chanca Piedra {T} - (Phyllanthus niruri)
- Guduchi {T} - (Tinospora cordifolia)
"Creatine"
powder is also brilliant for kidneys.
Gall Stones / Kidney Stones ↟↟
- Chanca Piedra {T} - (Phyllanthus niruri)
Synthetic Hormones ↟↟
- Chaste Tree (berries) {T} - (Vitex agnus-castus)***
*** Also helps reduce mood swings.
Period Pain ↟↟
- Chaste Tree (berries) {T} - (Vitex agnus-castus)***
*** Helps reduce mood swings.
*** Helps remove toxic synthetic hormones.
Prostate ↟↟
- Stinging Nettle (Root) {T} - (Urtica dioica)
- Amaranth (seeds) {T} - Amaranthus
Viruses ↟↟
- Artemisia (white root) {T} - Artemisia*
- Artemisia (Stem + leaf) {T} - Artemisia**
* Artemisia (white root) should be harvested in early winter.
** Any variety of Artemisia including Mugwort, Wormwood, Yomogi etc etc.
Cough Colds ↟↟
- Mullein (leaf) {T} - (Verbascum thapsus)
- Elecampane (leaf) {T} - (Inula helenium)
- Common Leek {T**} - (Allium ampeloprasum var. porrum)
** The white stem of the Common Leek is the most medicinal and it can be dehydrated and tinctured or even eaten raw or as I like to do, added to my daily miso soup (or organic parsley tea) - especially in Winter.
** The Common Leek is sometimes called a Shallot in some countries - but this is wrong - and this is why Botanical names (aka: scientific or latin names) is so important when selecting herbs and plants to tincture.
Eyes ↟↟
- Marigold (flower) {T} - (Calendula officinalis)
- Cornsilk {T} - (Zea mays)
- Bilberry {T} - (Vaccinium myrtillus)
- Eyebright (Euphrasia)
- Goldenseal {T} - (Hydrastis canadensis)
- Wolfberries {T} - (Lycium barbarum)
- Ginkgo biloba (Yellow leaf) {T} - (Ginkgo biloba)***
*** The Ginkgo seeds are supposedly poisonous.
Bones ↟↟
- Cissus Quadrangularis {T} - (Cissus Quadrangularis)***
*** Cissus Quadrangularis is a bone genisys herb and works extremely well with boric acid and hydroxyapatite.
Skin Repair ↟↟
- Comfrey (leaf) {T} - (Symphytum officinale)
I hope this helps.