I have a ukulele and a guitar. Wondering how I should sell them

A few years ago, I was gifted a ukulele and a guitar (i'm pretty sure it's an acoustic). I'm not that interested in playing string instruments though. I don't know how to use them and don't want to know. These instruments have been just sitting in their cases in my room for years. I tested them a few days ago. They still seem to work just fine, and they aren't broken. Basically still brand new.

How much do I need to sell these for? I could use a bit of extra money right now, and I'm sure someone would want these things way more than I do. I can add pictures of the instruments to this post if needed!