Do all 10 villagers tell you their wishes? So far I only have listed 7 colours / types.
Yes they do. However, they will only give 1 bit of information a day (So if like... One villager said they want this color present--you can't get more information from them until tomorrow. You can still ask other villagers though until they give their one piece of info).
The info also isn't guaranteed to vary per day--I've had Marina tell me just one thing this entire time. Regardless, I have enough information now that I can figure out who wants what:
Merengue – Home Appliance
Diana – Colorful Carpet – Kiddie Carpet
Marina – Plants
Maple – Carpet
Peanut – Red Lamp – Polka-dot Lamp
Cookie – Purple Doll – Papa Panda
Molly – Colorful Umbrella - Gelato Umbrella
Marcie – Clothing
Flurry – Doll
Julian – Black Wallpaper – Sleek Wall
Since nobody else wants a Home Appliance, the only one there is goes to Merengue, same goes for plants for Marina, and clothing for Marcie. Flurry wants a doll like Cookie--but I have the full information for Cookie's doll so the only other doll will go to Flurry, same for Maple as I have the full info for Diana's carpet and then I know everyone else's.
They will make it clear (the word will be bolded or whatever) when giving you a hint on the type or color.