(This vid contains mild spoilers for a postgame secret in Indigo Disk, as well as showcasing new and returning pokemon - but no spoilers for the unreleased Epilogue.)
0:00 Introduction
2:34 Illegal Shinies
3:59 Event Exclusive
5:07 Free Shinies
7:09 Ultra Space
8:08 Odd Egg
8:44 Shiny Gene Breeding
10:33 Chain Fishing
11:12 Dynamax Adventures
12:13 Radar Chains
12:51 Mass Outbreaks
13:43 Gen 4 Radar
14:13 Massive Mass Outbreaks
14:53 SOS Chains
15:37 Horde Encounters
16:40 Brilliant Pokemon
17:26 Gen 9 Outbreaks
19:07 Masuda Method
20:16 Meal Powers
20:50 Full Odds
24:59 Calculating Speed
36:30 Final Rankings
Guide to Gen 2 Shiny Breeding: https://www.reddit.com/r/pokemon/comments/8hf859/guide_to_shiny_breeding_mechanics_in_gen_2/
Thanks for reading the description; here's the full shiny list I made for this video in case you were looking for it. I hope you actually watched the video first and didn't just come straight here for the end results but hey, it's not like i'll ever find out if you did.
https://imgur.com/a/n0AUDRZ