Hello! I'm Rank 1 Idiot. I play toplane on the EUW server between Diamond 4 and Diamond 2 in season 10, jumping up and down :)
I've played a lot of top lane ever since starting before pre-season 1.

I am usually playing any of the following champions in toplane;
Malphite, Gnar, Sion, Kayle, Darius, Jax, Udyr, Nasus, Yone, Tahm Kench, Lissandra.
Now that that's out of the way and you can see i'm atleast diamond by the verification system of Mobafire, on to the playstyle of Tahm Kench, the most brutal first blood champion in the top lane.

Pros:
Powerful peel
Roaming capabilities with ultimate
Extreme early game damage
Enabling hypercarries


Cons:
Immobile, Easily gankable
Weak lane if equal post 6
Not a meta fit, as usually you find carries in toplane during this season


Tahm Kench absolutely dominates any and all early game matchup with his passive & Hail of Blades, plus heavy base damages on his Q and W abilities. Pick him to stop toplaners from becoming strong, and as a peeler/support during the mid-lategame with some damage.

Abuse your passive to win lanes, prioritize farming, roaming at 6 for ultimate ganks, and help your jungler invade/contest anything to win the game by being ahead.

Early-Game
Press your advantage from the very start, as you win any trade at level 1-2, use Q when they have 3 stacks from your passive, not your W.

Poke the enemy laner down early, so you can go contest crab with your jungler, even winning the 2v2 if enemy midlaner/toplaner decides to show up.

As soon as you hit 6, shove your wave in, recall and buy whatever you can, walk towards your topside jungle and see if you can teleport behind the enemy midlaner to either force a flash or a kill.

Early-mid
Ask your jungler to prioritize herald, as you will win nearly any 2v2, and you can use Herald to keep a strong lead. Leave your lane to gank with ultimate any time it is up, by asking your jungler or midlaner to cover your lane temporarily.

If your jungler is in botside, you can quickly take crabs by using your W as it does % Max health damage. This will grant you ~100g & vision for free.

After laning phase comes to an end, you should prioritize going towards items such as Locket of the Iron Solari or Knight's Vow to become a meatshield for your team.

Mid-Late
During mid-late, your goal is to peel your carries, set up collapses on enemies splitpushing by using your ultimate, provide vision and vision denial, and bodyblocking enemies off of objectives such as baron/dragon, as with Warmog's Armor & Tahm Kench's E ability, youll be extremely hard to push off of objectives.

Prioritize peeling for your carries above all during lategame fights, as your damage will have fallen off, even if you have titanic hydra to burst assassins with.

Even if you cannot fight other splitpushers such as Fiora, Camille or Jax, you can oneshot waves with Sunfire Cape + Titanic Hydra, and join your team with your ultimate, as it has massive range at rank 2 (level 11) and onwards.

TL;DR. Stomp laner top early, give jungler priority and build into support items and be a walking turret for your team in lategame. Good luck and don't forget to buy pink wards :)

If there's any questions related to the playstyle, items, matchups and synergies you're missing, leave a comment, or contact me on discord Alcatraz#8892 and I'll update it as soon as possible :)