Chaining for IVs and get a fortune teller to set the nature is the way forward and much better than chain breeding a degenerate inbred abomination while playing bicycle simulator. With chain breeding you're letting a baby Dratini who was born a couple hours ago fuck his mom multiple times just to get the 6 IV Dratini that you want, which is extremely antithesis to the message conveyed by the game.

Chaining IV is still challenging enough but it is not completely RNG and braindead. I hope Gen 8 completely removed breeding and egg moves.