I found myself using these quite frequently (Sorry for terrible spelling)
Speed mons
Pidgey line, Meowth, Taurus att/speed, rattata/Raticate, Fearow/Spearow (Rooftop/Beryl Ward), Pikachu(rooftop post), Diglett, Dugtrio but not alolian Dugtrio, Ponyta/Rapidash rt. 1/Vahanan castle, Voltorb/electrobe shades gym
Tailow chysolia forest headbutt
Combee many trees by headbutt
Elemental monkeys
Bascullin (2), lumineon, finneon fishing rt 4, zebstrika,
Heliolisk dessert 1sp a/1 speed
Noibat, Novern, swoobat, woobat
Espurr/meowstic peridot alley post 16
Sp. A
Psyduck/Golduck
Venomoth post 16 obsidia park /1 speed
Oddish/gloom obsidia park/azurine Island
Magnemite shades gym
Eggecutors dessert
Natu (Beryl Ward totom pole)
Xatu cir de arc pre 16
Spinda crysolia forest
Cherubi/cherim lower peridot ward
Oricio Tarzan cove
Minior teknite ridge 1 att/ 1sp a
Mandibuzz dessert
Chinglng under grandstairs
Att
Beedrill 2att/1 sp def
Paras mal forest
Parasect 2att/1def Mal forest post 16
Alolian Dugtrio dessert
Mankey Slums
Doduo/dotrio Beryl ward
Goldeen/Seeking
Pinsir/heracross rt 1 honey
Spinarak/Ariados
Poochyena line alleyways
Nuzleaf/shiftry Mal forest post 16
Cacture dessert 1sp a
Chatot crysolia trees
Carnivine Jasper Ward
Drillbur/excadrill Tarzan depths/scrapyard
Tranquill illolia valley
Darnanian standard dessert
Escalliver Titania's gym
Cubchoo/beartic
Druddigan Titania's gym and rt 3?
Pancham slums
Hawlucha rt 2?
Lycanrick dessert
Dhelmise diving spots in azurine lake
Golett baryl ward totem