Can't you do like, add a "catch them all" for each route?

The catch them all for all routes would be too long. But 1 run for every route seems fun.

Although I've just checked the wiki:

"It should be clarified that if there are 2 Pokémon in group B or group A, only one of them will appear on each ride. For example, if group A has Magby and Wobbuffet on a route, only one of them will come out and if we want the other we would have to come back from the walk and start another walk on the same route to see if the other Pokémon appears this time. And if not, be restarting the ride on the same route constantly until the Pokémon that comes out is the one we want" So I'm not sure on how fitting it is