u/shurikceo

Hi so i have been using the sony nex-5 with viltrox 20mm f2.8. I have been thinking about upgrading but im not sure which camera from the series to get? I was thinking about 6300, 6400 or 6500 but im open to completely different models, i want better photos and also video with manual exposure settings. I dont really care that much about af because i have been using manual focus on the nex 5 from start so its not a big advantage for me. I want something small and light that is a big thing for me. So could anyone help me with this please?