Aftermark gopro accessories?

Got myself a hero 4 silver i while back.Started looking on the web for the best accessories and saw these "gopro accessories kits for sale" 20-60$ . Which is cheap compared to the gopro products. Now I want to get one of those bundle kits with almost all of the accessories and use it until i find out which products i really do need and then buy from gopro.
So my question is, what would be the best brands to buy from on amazon(They have great deals). Good quilty Groducts that are reliable. Thanks alot.

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