Which lane? If it was top I would have recommended renekton. His pool party skin lets you BM easy by spamming the back button.
Bot would be Lucian. support would be pyke. mid I would say either Zoe, Leblanc or Galio
Galio is very tanky against magic damage so you won’t get one shot by mages, you can also get armor on him to help with AD champs. And it’s really fun killing somebody with his auto attack SMASH! And his ult is really good when positioned correctly and lets you enter a fight really fast.
If Aatrox still had the two charges on his e then I would have recommended him, but now he will be harder to play with the nerfs coming next patch.
My last one is Quinn, lots of damage early and has amazing roam potential with her R (it does cost a lot of mana early tho, 100 at rank 1, 50 at rank 2 and 0 at rank 3)but she does have the issue of being one shot a lot if you mess up your combo and didn’t land q or if your e brought you right in the middle of the enemy team. Quinn is fun but for me, she is far more risky than most ranged champs because I have a tendency to rush into the fight or the enemy champ, which can put me in a very bad spot if I didn’t position correctly or didn’t go in at the correct time.