Task tracker with automatic Gantt workload, does it happen?

Question

Project management

Please help me find a task tracker that can do the following:
There are people (resources), tasks are assigned to them, tasks have time estimates, for example 16 hours.
In order to make it clear when something will be ready, I want to see the Gantt / Gantt workload view, which rebuilds completely automatically, so:

• a resource cannot have more than 8 hours of download per day
  
• tasks automatically stick to resources, ensuring full employment
  
• if a higher priority task is assigned to a resource, all tasks are shifted automatically
  

Thus, it becomes immediately clear to management what to expect when, and how these expectations are influenced by what is being pushed under the sauce "let's do it quickly today today"

Answer 1

this is usually called a project manager / team leader / something else, probably, and this is a person.
In real life, it's hard even for a manager.
It's hard to set priorities, it's hard to choose a performer for a task, it's very difficult to plan at least something when working with legacy code.
And you want to replace all his work with scripts, or rather, even replace the entire manager with a diagram .
And the gantt chart just helps to visually conveniently see what the manager has planned. Well, maybe drag something else somewhere.

Answer 2

I have probably already touched 8 online services for managing tasks, everywhere tasks do not have a time estimate, but start and end dates, and in Gantt you have to poke all the handles, this is not at all what I want

Here is from my knowledge base. I didn’t immediately remember where there is a gant, see for yourself.
• Recording cases, taskers, task management systems
○ https://planfix.ru/prices/ - Price 290, 490 or 640 r / person per month - depending on the capabilities of the system. Interesting tariffs and opportunities, there is a time tracker (2016)
○ https://megaplan.ru/calculation/ - Price 250 rubles per person per month (2016)
○ https://www.bitrix24.ru/prices/ - a complex combine
○ https://basecamp.com/3/pricing - $29 without clients, $79 with clients (2016)
○ https://www.wrike.com/price/- Restrictions of the free version on the nesting of tasks and the functionality of the entire system. There are mobile applications. Liked the inside. There are no subtasks on the free version. (2016)
○ https://asana.com/pricing - There is a free option. But to the touch - unintuitive kaka. Solovyov advised her. (2016)
○ worksection.com/price.html — Free only for 2 people (2016)
○ https://zettaplan.ru/price/ (2016)
○ www.teambridge.ru — From 1000₽ (2016)
○ https ://www.producteev.com/pricing - There seems to be a free full-featured version and apps for mobile. But in the project, nesting = task-subtask = small. And somehow everything is miserable (2016)
○ https://pyrus.com/ru/pricing — From 9 rubles per person per day (2016)
○ promo.advanta-group.ru/advanta — From 5454 rubles (2016)
○ helpcenter.onlyoffice.com/ru/faq/free -cloud.aspx - Compared to wrike, it is limited only by the nesting of tasks, otherwise it is fully functional. But there are no mobile apps. Normal inside. (2016)
○ https://workflowy.com/ - unlimited nesting of subtasks, flexible task management, there are tags. Looks like lists with nested lists (2016)
○ synkra.com/login - Dull one-level to-do list shit (2016)
○ https://ru.todoist.com/business- According to the descriptions, everything is beautiful, but in the free version, the list of single-level cases is stupid, not usable at all. There are no discussions in the free version. (2016)
○ https://planiro.com/ru/pricing - Similar to Bitrix, but simpler and prettier. Paid only (2016)
https://taiga.io/pricing.html