Best formulas - help

Hi all,

Long story short, I don’t feel my baby is getting enough breast milk. Our feeds take about an hour and she doesn’t seem content always after the feed and often times still hungry. Her latch is good, she is having enough wet diapers but she just doesn’t seem content and I have also seen when I pump, my milk supply isn’t where it used to be. Anyway, looking to supplement two feedings (evening and early morning with formula and still

Pump as well).

Question is - is there a good way to introduce your baby to formula or do you just make a bottle and go for it and is there any brands or types of formula to completely avoid?

Is the organic the best option out there?

Thanks in advance mamas.