#1
So, like i can play guitar pretty well. but im starting to really want to play solos. ive learned One and Man in the Box Solos. i would like to learn some not hard but challenging solos. please help with suggestions.
#2
The good thing is, most solos are improvised and it's quite rare that a guitar player does it the same way twice. I'd really urge you to start learning your scales, such as minor and major pentatonic. These scales are the foundation of many a great solo.

Having said that, there's nothing wrong with learning the solo from a song that you like, but you really want to develop your own style. You don't want to be stuck in the mold, where you're only able to play the solo the original artist played. Learning another artist's solos is a great way to breed new ideas.