If it is a big deal to you, you can try massage and taping in conjunction... But honestly, a lot of it has to do with the strength of the ”bell” of the ear. My girl has very firm bells, and so no amount of taping or massage could make her ears lie ”correctly”.
From what I understand on the matter - In areas where boxers are kept with natural ears, this generally doesn't show up so much due to selective breeding; here in the states, though, cropping is still often done and so a stronger bell would actually be beneficial for the crop to hold.
At any rate, I like to let the ears fall where they may now! Daisy absolutely Hated the ear massaging, and it eventually occurred to me that I was making her unhappy for something superficial that mattered to me... She is perfectly happy with her bat ears! It's funny to me now, sometimes I will hold daisy's ears down in a proper earset, and she just doesn't look right at all! Her crazy ears were made perfectly to suit her crazy personality
Either way, your baby is gorgeous!