You can get a Spritzee from Lapis Ward after the puzzle, find Bunnelby in the North Beryl Ward by the graveyard, pick a 6th gen starter, find a Helioptile on the rooftop in the Beryl Ward on a sunny day, find Skiddo on Route 1, or ask around with other people, but those are all the 6th gen I've come across, minus the starters, so far