We use GMD large UB flats with a variety of doublers inside including newborn or small prefolds trifolded, Thirsties hemp inserts, and small or large flats padfolded that are either GMD, Diaper Rite, or OsoCozy.
For nights we use a large GMD flat folded like a prefold, Thirsties hemp insert large inside, and another large GMD flat padfolded on top all fastened around DD.
I really only use my DR and OC flats for doublers as they're not as absorbent as my GMDs. My DD is 18 months and a heavy wetter.
: MM Dragon's Lair (2) + trim (1) on Uruguay 3-ply
includes Green Line, RagaBabe, BBB, Joey Bunz and more.