Has anyone done any kind of sleep teaching, while maintaining one or two night feeds?

My baby is 6.5 months old. Was a great sleeper (for an infant) until 3 months, then a combination of early teething and sleep regression sent it all to hell.

He wakes roughly every hour, but some nights (like tonight) it’s very 20 minutes and it’s BRUTAL. I only feed him about every 3 hours (breastfed), the rest of the time I rock him back to sleep.

I hate sleep training, I did Ferber with my first child at 6 months as I had to go back to work, but I’m at breaking point and think I have to do it again this time. we have a consistent bedtime routine and I have tried to do drowsy but awake but that does not work. He naps well during the day (1-2 hours per nap), but for those he also has to be rocked or fed to sleep.

My first born is almost 5 and I can’t really remember how I balanced sleep teaching and night feeds with him.