Teemo's Harass is a little too high (short)
I'm mostly talking about nerfing his laning phase damage to make it more survivable for juggernauts, tanks, and other immobile melee toplaners. When teemo plays the match up perfectly his damage can be a bit overwhelming. Especially when summon aery can proc twice with him and only him. I mean I even rushed mr against him and his damage still shreds the same way.
I'd say just one nerf to his E damage and it should be fine.
Here's an op.gg of a teemo one trick who plays teemo at a very high level: PROJECT Godmo
My point is if his E damage is nerfed early but kept the same later, then he'd be a lot better to deal with.
And maybe code summon aery to not proc twice to because it only procs twice on teemo for the most part
TL;DR nerf his early laning phase e damage and keep it the same mid to later ranks so he isn't completely gutted.
Or rework him to give his kit a little more skill involved in laning phase so at least when he harrasses, its because of player skill with their abilities and not just his point and click positioning.