How do i make a correct architecture for a multi-enterprise application?

I've got a question about the architecture for a JEE application, that is supposed to give personal spaces in the server (also database) for enterprises that make an account with us.

So is it better if i create a new database for each enterprise or do i make them all in the same database ?

I'm currently using Spring Boot, Spring JPA Hibernate, Thymeleaf, MYSQL. (I'm also having an android side to connect with my Servlets)

So do i stick with these or is there something better ?

Thanks for your time. Have a nice day.