Here's a list.
Route 101 | Youngster Joey | Ratatta
Route 102 | Youngster Calvin | Ultra Ball
Route 103 | Twins Amy & Liv | Poké Doll
Route 104 | Lady Cindy | Luxury Ball
Route 104 | Lass Haley | Ultra Ball
Route 106 | Fisherman Elliot | Water Stone
Route 106 | Backpacker Graeme | Max Repel
Route 110 | Triathlete Benjamin | Iron
Route 110 | Collector Edwin | Repeat Ball
Route 110 | Poké Fan Isabel | Heal Ball
Route 111 | Ace Trainer Brooke | PP Up
Route 111 | Ruin Maniac Dusty | Star Piece
Route 114 | Kindler Bernie | Fire Stone
Route 115 | Battle Girl Cyndy | Carbos
Route 117 | Teammates Anna & Meg | Ultra Ball
Route 117 | Triathlete Dillon | HP Up
Route 117 | Pokémon Breeder Isaac | Rare Candy
Route 118 | Guitarist Dalton | Thunder Stone
Route 119 | Pokémon Ranger Catherine | Timer Ball
Route 119 | Pokémon Ranger Jackson | Timer Ball
Route 119 | Brains & Brawn Jael & Kael | PP Max
Route 120 | Bug Maniac Brandon | Net Ball
Route 120 | Street Thug Gomez | Dusk Ball
Route 123 | Psychic Cameron | Calcium
Route 124 | Free Diver Arzu | Heart Scale
Route 124 | Swimmer Jenny | Pearl
Route 125 | Sailor Ernest | Dive Ball
Route 128 | Triathlete Isaiah | Zinc
Jagged Pass | Picknicker Diana | TinyMushroom
Jagged Pass | Camper Ethan | TinyMushroom
Petalburgh Woods | Bug Catcher James | Net Ball
It's a REALLY long list to copy out, so I would suggest just using the link.
