Plenty of super HTs to choose from, for me the VK100P is a standout because of its crazy armour compared to other T8 tanks.
Be aggressive and drive into fights where you are facing multiple tanks from one direction, preferably where you can hide your turret.
Bait shots by firing your standard rounds so they will not penetrate the enemy (make sure you are using the penetration indicator and only shoot when it is red, you want them alive and shooting at you as long as possible). This will give lower tier tanks an opportunity to pop out and shoot at you while you reload after your "terrible" gunnery. Example of this in this vid from 12:30 mark ( https://www.youtube.com/watch?v=uU2HxuTsyo8&t=1197s )