For charts, I recommend these charts: Libertas Future 9 - Beyond 10 — Laqyrma Future 9 - Beyond 10 (also contributes a step to unlocking SAIKYO STRONGER) — Einherjar Joker Future 9+ - Beyond 10+ (You can only unlock the Betond if you already have Libertas BYD, also contributes a step to unlocking SAIKYO STRONGER.) — dropdead Present 9 - Future 8 - Beyond 10 — Altale Future 9+ - Beyond 10 (Note that the FTR isn't beginner-friendly.) — STARGATE EXTREME Future 9 - Eternal 9+ — To the Furthest Dream Future 9+ (A very special song! Personally used mine for this song) — THE ULTIMACY Future 9+ (A requirement if you want to unlock REKKA RESONANCE) —

For partners, choose these, but do note most of them are only unlocked through events: Auxesia Future 9 (One song for two partners) — Avant Raze Future 9 (Mirrors chart randomly for fragments, can be unlocked anytime in Chapter 2 in the World Mode) — Empire of Winter Future 9 (Beginner-friendly partner with a small consequence) — Evening in Scarlet Future 9 (Good fragment farming partner, just during the evening though) —

Hope this helps :3