I've been near two in total through legit play (separate times). I probably would've found one or both of them if I had tried to.

Never legit ran into a snorlax or lapras tho

Actually, I've ran into one legit as well, but it ran away.

Not sure how anyone can get multiple Dragonites without a map.

Just evolve one of one of ur best iv dratini if u can manage to farm enough candy

Syndey, Austrila has mutiple dragonite and dragonair spawn sites but the timing is random. You'll need at least 40 ultra balls, 80 great balls, and the rest pokeballs. I mix the throws up by switching from 1 ultra to 2 great to 1 regular and etc. It took me around 30 to 60 throws to get one. You'll need to use the fastpokemap.se to find them.

That place so good at farming dratinis lol