Shroomish is on route four in the rock climb area fairly common encounter
Slowpoke is route 4 fishing anywhere with super rod no longer can fish at Absol spot
Psyduck/Golduck are commonly found in the mountains surfing the one below Shades gym I believe
Listen depending on which gang choosen is slightly different if choose Aqua by Archie upon completion of the applications and magma in Argate city by rock climb spot as a trade
Anorith is a rock mining fossil
Binacle through rock smatch in around Apophyll beach you need, where the lvl 100 pyukumku is or where you get the abomisnowite
However which of these do you still need in general?