I cant speak perfectly for all classes, I feel a couple are already in a good spot but ill give my feedback based on personal experience. Vortex nova yeah needs a much bigger radius but it should also be converted to lance nova bomb. Top tree nova bomb is mostly fine, I would increase the charge speed of grenades and simply improve the speed of slova bomb, the seekers need to be buffed yet again. Nova warp I personally feel is fine apart from its charge speed to do attack. Stormcaller is fine, bottom stormcaller needs ionic blink to be viable and top tree needs super conductor as a perk like it did in D1. Super conductor simply increased the range and chaining capabilities of stormcaller so it was much easier to get multiple kills at once. Bottom tree dawnblade only really needs air dodge to be a viable class and a small buff to melee where landing melee kills instantly regens grenade energy. Hunters don’t have it too bad, golden gun is fine, barrage is still good but lately feels inconsistent. Top tree tethers needs to activate instantly, bottom tree tethers should get its tethers removed in return for D1 tracking arrows that one shot players. Its basically a tracking version of golden gun, thats how it was used in D1, only D2 will remove its suppression for balance purposes. Arcstrider needs some form of dash other than its dodge, its honestly the easiest super to outrun in the game. Thats pretty much it, hunters have the best neutral in the game. Titans could definitely use a buff on their mid tree solar class, that thing is just as bad as nova warp. Some buffs in the other 2 trees for its neutral game and its perfect. Sentinels are mostly fine, the shield tracks like crazy but the melee attack can be inconsistent at times. Arc titans are perfect, I can use any of the arc ones just fine without any trouble and create any build I want.