Simple website (shop/calendar) - training sales

Hey, I will describe the functionalities of what I need and you can suggest a solution on how to achieve it.

I need a site (or landing page, or store) where I will sell training, which I will implement stationary. I need a place to describe the service (innovation) so I need a few times to explain what I am offering. I would like the trainings to be sold in thematic blocks, where the customer himself chooses what he needs (topics, time, price) also offers the date of the training, but this will need to be confirmed. Possible online or in-person payment.

I will drive traffic to the site from sociali, so the site must have plugins or tracking programs installed.

I will purchase the domain and server, I would need recommendations on where is best. The domain will need to be set up.

Graphics we will use I will provide or you do it, anticipating it in the budget (ai)

In addition, the site must include:

- contact forms,

- reviews

- online or in-store payments

- sliders and a large number of graphics.

- quick contact by chat

Suggest a solution, it may be wordpress, it may be in the form of a landing page. Language version only pl ; I do not have a specific look yet, colors, logo, etc.