There are several sources where you can find bootstrap themes, also with carousel components and more. for instance: Odoo themes | The Odoo Store
Thanks Ray for changing the title (lost the post); A second tip: use the tags to inform Forum users to recognize questions that the know answers for. Or to discover similar questions.
Hope it helps
"Theme" is not a question. A question is a substantial phrase that ends with "?"
We get over 1,000 posts a month and not everyone will open a post to find out what your question is.
I have edited your post to make the title a question.
In the future, please consider using a Question that makes it clear what you ask without requiring people to open your post, as this will often increase the chances people will respond and make everything clearer for others looking for the same answer.
See also https://www.odoo.com/forum/help-1/meta-why-do-some-questions-get-answers-and-others-do-not-25620
Thnaks and exuseme.