Honestly the only maps I ever play are Boo Camp and Ghostly Gold.
I occasionally play Museum Melee just to get weapons that I wouldn't have access to.
Vanguard Dawn And Witches Trial are good maps if you're trying to get good skills.
Royal Royale is just to get more Dread Scrolls and Ebon Wing. I think you get enough already.
Hidden Truths 1 is a good map if you are trying to get Ignis or Rally Spectrum.
And End: Lost in the Waves if you need Point Blank
So the maps i recommend are
Boo Camp
Ghostly Gold
Vangaurd Dawn
Witches Trial
Museum Melee
Hidden Truths 1
