I know this is a bit old, but I have to agree with Mehdia on the "j-rock" (or even just "asian") mullet. I'm currently rocking one, but cutting it to match Ruki's No. 666 hair soon, haha.
Either way, for the past two years, I've pretty much messed around with various visual styles, cutting it on my own or with the help of a friend. Initially, we based it entirely off of Uruha's Silly God Disco cut/colour, let it grow and went to Maaya's (LM.c) lion mane, so on and so forth messing around. If you have longer hair like I initially did, go with the mullet first, maybe find an artist or two that styles it in a fun way and imitate them after the cut. Move on from there. The mullet is also one of the easiest to style and learn to style on.
Oh, and make sure where ever you get it cut (though you may have already), you ask for it to be razor cut. That will get it to look the best!
I hope I was able to help haha