This one is one I'm sure a few people might have an interest in writing. The Male reader is boy from the Hoenn region who's recently moved to the Sinnoh region, he's caught a pair of pokemon from Hoenn, them being Swablu, who hatched from an egg, and Corphish, that he caught on a fishing trip.

This story should be similar to the anime, where the point of levels in non existent.

He chooses to go on a journey, like you do when your in the pokemon world.
I'd say no real obvious team members like, riolu, garchomp, or the like, be elaborate, have him get a kabuto from a fossil. Stuff most people wouldn't use. And let him have a good fight, in the end he doesnt even need to win the league, just write a story people can enjoy with a good plot.