no worries, you found the right place!! (we also have a discord server for eventide if you are interested :] ). I have consulted Ruah and Ren for their respective characters.
Haewon: tea lattes or hot tea with some honey! She also likes milk tea on hot days. She likes all noodles, whether they're in a sauce or a soup/broth!
Gordet: rice bowl enthusiast, specifically tonkatsu curry. He likes water, specifically cold, purified water that tastes really good/refreshing, idk how else to describe it but if you know you know
Ren: he will eat anything! he does like sweet drinks tho
Wren: sunflower seeds, I think he prefers food that he can keep in a pocket and munch on the go. idk what his fav drink is lol
Ru: Filipino spaghetti for food and anything with mango in it for drinks
Haru: spicy foods. I think it's because they're the only thing that make Haru feel something. The obvious pun of ghost pepper is there. Haru likes coffee, and he doesn't really have a preference for how his coffee is prepared.