Good evening Fabio and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
The good news is that you can totally tweak how pretty much everything looks on your calendar related pages. In fact, we made sure that our plugin was built with an architecture that would enable our customers to do that.
As a first step, you might want to read our Themer’s guide.
This will give you a sense of how you can come up with your own versions of the calendar related templates. Simply put, whatever you put in the /tribe-events folder and functions.php of your WordPress theme will have priority over the default layouts and behaviours.
We also put at your disposition a fairly complete list of the functions that are available to you for tweaking here: https://theeventscalendar.com/functions/
That being said, there is no built-in widget or shortcode for tickets at this point. So template customization is pretty much your only option for now.
If that’s outside of your confort zone, you might want to hire one of our recommended customizers to do the customization for you.
Let me know if that helps.
Have a great day!
Geoff B.