Assuming you meant "use" and not "ue" It really depends on the application, for some quick scripting, something like go or python are good, if you want something a bit more on the technical side but still easy, try kotlin or java, I personally use java for most things and I recommend and IDE for any language if you wish to start learning.
If you did mean "ue", what do you mean by that, unreal engine? unity engine?