Honestly, you are probably better off picking champions you are familiar with. However, if you don't really play anyone top lane I would recommend:
since she can lane against bruisers and ranged champions well, can be played like a tank or an assassin, and is difficult to push out of lane.
has good sustain, tankiness, and CC. He can survive and farm against many champions and easily set up ganks with his jungler.
has great sustain in lane, safe farming with cleavers, good mixed damage, and is tanky as heck.
and
are also contested picks, but I'm not sure how that will change with the latest patch or the new jungle.
is a strong lane bully when built as an AD bruiser (Sheen->TF or IBG, Defensive Items, BotRK) and good for split pushing.
Also, might be a personal favourite but if your enemy picks a melee bruiser against you in lane (Zed, Riven, Kha'zix, Wukong, Xin Zhao, etc), you can pick
and crush them in lane. You build Iceborn Gauntlet, Sunfire Cape, Locket of the Iron Solari and Randuin's Omen and they can't really hurt you while you wreck them. Not exactly the best choice, but I always find it funny.