Which breast pump is the best?

I can’t advise much about the differences in pumps but I’m currently using Hegen pump for 4 mths and it’s working ok for me! I’m slightly oversupply though so i have to do compressions/massage while pumping to clear fully. I do think it may not clear as well as other pumps but i appreciate the portability more. I don’t have any help most of the time and i’m the sole caregiver for my baby and dog before my hubby ends work so being able to move around helps a bunch! Note: before i realised that i need to do compressions while pumping, i was always engorged despite taking lecithin and ended up with a round of mastitis. So pls be careful!