Best formula for breast fed baby?

Tess • 💍 7.12.14 💗|👶 6.7.20 🎀|👶 4.26.22 💙

My baby girl will be arriving in early June 🥰 I do plan to breastfeed and pump, but I know to always expect the unexpected. On the off chance that bf/pumping does not work out, what are some good formula recommendations? Wanting to be prepared just in case! Thanks in advance!