Need help with a main...

I've always struggled with having a main. Mostly because I nothing just makes me want to keep playing them. But to learn tekken I feel as tho I absolutely need a main so I have a solid footing and therefore I require some help. I love characters that look flashy or have flashy effects. And someone where I can learn kinda quickly but be able to say i main this character and I feel proud that I learned them because they were kinda difficult and not some easy character. Thanks to anyone that gives me some advice