I've discovered an online community of people playing Pokemon games in a new, even more insane than Nuzlocke runs way. It's called the professor Oak challenge and to do it you have to fill out the Pokedex as much as possible in each area before advancing the main storyline. Like literally evolve and breed and catch as much as possible before you can't anymore, then go get the next gym badge/advance it whatever way gives you access to more.