Good afternoon! After recent advances in my professional life, I have some extra free time and I'm interested in ways to generate passive income that won't require a lot of effort in terms of time. Could you share any tips or recommendations?

Good afternoon! Recently, due to my advancement in the professional sphere, I have additional free time, and I strive to use it as productively as possible. Can anyone suggest methods of creating passive sources of income that will not require a large investment of time?