I just realised it was a litte rude of me to ignore your question and simply push my own thoughts on you...

With DD, as she did not feed to sleep, we established a bed time routine that we more or less stick to every night. We have dinner, bath (or sometimes other way around), feed, book and bed.

Even if you're not on solids yet, you can still do the bath, book, bed part.

I have read that if they are feeding to sleep, it is recommended to make sure that last feed is at least half an hour before the time you want them to go to bed, then you have half an hour of "gentle" play, like reading books or quiet play in their room, before popping them into bed.

If you persist with a routine, eventually your DD will realise that although she is having a feed, it is not quite bed time and she will stay awake a bit longer.

If she still feeds to sleep, you could try bringing the time of that feed forward a bit, or maybe pushing her last day sleep back a little bit, so she isn't so tired? Just a suggestion.

Good luck and I hope you find something that works for you