Hi Flavio
Others can create events using Community Events, and optionally charge a fee processed by your site using Community Tickets. Both require The Events Calendar (free) to run, while Community Tickets would also require using Event Tickets Plus & Event Tickets (free).
Check out each of those links to see if we’re a good fit. It does sound like this is what you are looking for.
We test our themes with all default WordPress themes, and see a good bit of themes that integrate our plugins in unique ways into their site. We do not have a definitive list of other themes that we work with.
We do offer 30 day refunds if you find the plugin does not meet your needs. It’s just a matter of submitting a refund request form at https://theeventscalendar.com/knowledgebase/refund-policy/.
Is there anything else I can help you with?
Thanks
Courtney 🙂