From /r/ListOfSubreddits[1] , here's part of the wiki:[2]

The most relevant parts are probably in the self improvement section.

Lifestyle

General

/r/LifeProTips[3]

/r/lifehacks[4]

/r/geek[5]

/r/battlestations[6]

/r/EDC[7]

/r/malelifestyle[8]

/r/simpleliving[9]

Communities

/r/lgbt[10]

/r/beards[11]

/r/teenagers[12]

Drugs/Alcohol

-Drugs

/r/trees[13]

/r/drugs[14]

/r/electronic_cigarette[15]

/r/marijuana[16]

/r/treesgonewild[17]

/r/stonerengineering[18]

/r/stopsmoking[19] (not in normal wiki; added to this comment by request)

Alcohol

/r/beer[20]

/r/drunk[21]

/r/homebrewing[22]

Exercise/Health

/r/GetMotivated[23]

/r/health[24]

/r/ZenHabits[25]

Mental

/r/LucidDreaming[26]

/r/meditation[27]

/r/Psychonaut[28]

Physical

For more fitness subreddits, see this list[29] compiled by

/r/Fitness[30] !

Note: Many of those subreddits are tiny/inactive.

/r/Fitness[31]

/r/loseit[32]

/r/running[33]

/r/bicycling[34]

/r/bodyweightfitness[35]

/r/keto[36]

/r/progresspics[37]

/r/fitmeals[38]

/r/bodybuilding[39]

/r/paleo[40]

/r/WeightRoom[41]

/r/xxfitness[42]

/r/yoga[43]

/r/skateboarding[44]

/r/climbing[45]

/r/gainit[46]

/r/ketorecipes[47]

Fashion/Beauty

-Beauty

/r/tattoos[48]

/r/makeupaddiction[49]

/r/SkincareAddiction[50]

/r/beards[51]

/r/wicked_edge[52]

/r/FancyFollicles[53]

/r/RedditLaqueristas[54]

Fashion

/r/malefashionadvice[55]

/r/frugalmalefashion[56]

/r/femalefashionadvice[57]

/r/thriftstorehauls[58]

Food

/r/food[59]

/r/FoodPorn[60]

/r/cooking[61]

/r/EatCheapAndHealthy[62]

/r/slowcooking[63]

/r/recipes[64]

/r/fitmeals[65]

/r/coffee[66]

/r/foodhacks[67]

/r/shittyfoodporn[68]

/r/askculinary[69]

/r/budgetfood[70]

/r/baking[71]

/r/tea[72]

/r/eatsandwiches[73]

/r/ketorecipes[74]

Money

/r/PersonalFinance[75]

/r/frugal[76]

/r/shutupandtakemymoney[77]

/r/EatCheapAndHealthy[78]

/r/Bitcoin[79]

/r/BuyItForLife[80]

/r/frugalmalefashion[81]

/r/investing[82]

/r/Entrepreneur[83]

/r/beermoney[84]

/r/budgetfood[85]

/r/cordcutters[86]

/r/startups[87]

/r/finance[88]

/r/economy[89]

/r/financialindependence[90]

Religion/Beliefs

/r/atheism[91]

/r/philosophy[92]

/r/Christianity[93]

/r/Psychonaut[94]

/r/Buddhism[95]

/r/trueatheism[96]

Relationships/Sex

/r/sex[97]

/r/relationships[98]

/r/seduction[99]

/r/nofap[100]

/r/socialskills[101]

/r/relationship_advice[102]

/r/Tinder[103]

/r/Parenting[104]

/r/r4r[105]

/r/OKCupid[106]

/r/childfree[107]

/r/socialengineering[108]

/r/raisedbynarcissists[109]

Self-Improvement

/r/GetMotivated[110]

/r/QuotesPorn[111]

/r/getdisciplined[112]

/r/depression[113]

/r/happy[114]

/r/productivity[115]

/r/DecidingToBeBetter[116]

/r/anxiety