Help purchasing a heavy bag

Been doing Muay Thai for a year, been feeling progress for a newbie, I love shadow boxing at home or hitting my towel that hangs pretending it’s a punching bag. I need advice on a heavy bag, I don’t know if I want heavy bag/ a bob/ or freestanding bag. I live in an apartment, my mom said if I do purchase one I can have it in the living room, what’s a good one to get? I like being everywhere when I spar or hit the bag, I’m very flexible to throw high kicks in speed. Please give advice on a good bag for an apartment on the second floor. And also brand pleaseee

***UPDATE bought the versys bob, THANK YOU