My ideas for farming

so i was thinking since the world drop pool is so huge that its gets really hard to farm the gear you want. so to fix this my idea is to add a modifier that for increased specific loot drop chance (I.E.
increased legendary assault rifle chance, class mode, or relic and so forth. ) or tying legendary to specific planets or area of the game. for instance on this planet or area you have in class mod drops or this area you have increased pistol drops and so on. they can make it rotate and tell you in the planet description. just some ideas i had while farming.