Which techniques give the best Shiny odds in Sw/Sh?

Question

Is there an increased shiny odds method for SWSH like the other gens? Because you have the pokeradar in gen 4 and in X/Y, and then you have the dexnav in ORAS, you have chain fishing in gen 6, ultra wormholes in USUM, egg shiny substitution in gen 7 and other things in the other gens, is there a way to get them easier in SWSH that is similar to these shiny odds?

Comments

thnx v much!

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Answer 1

Update
The Crown Tundra introduced a new method of increased odds called Dynamax Adventures, which have 1/300 odds without the shiny charm and 1/100 with it. These are the highest possible shiny odds in Sword and Shield

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