You're going to have a hard time maintaining an acceptable ratio on a non-ratioless private tracker without a seedbox or a NAS/homelab that's on 24/7. These trackers largely self-select for power users.
I'm on several and have no issues, I just seed when my computer is on but with low bandwidth. I live by long seedtimes, bonus systems and Freeleech and have easily a few terrabytes of buffer on my trackers
