There are zillions of DSLRs (or mirrorless) and the GH4 is a great camera for a hobbyist and is also used professionally. I just shot a music video on one of those: https://www.youtube.com/watch?v=etT4rVrGyXc
However, to best answer, I would like a little more information, specifically:
What do you want to film with it?
What times of day would you like to shoot with it (i.e. night).
Would you like it to take pretty still photos as well?
What is the focal length of the lenses you have and manufacturer? e.g. 16mm Samyang.
Do you need sound?
Do you have other accoutrements, specifically a tripod and fluid head?
"80% of success is turning up" - Woody Allen