I pump with a Medela Pump In Style, here are my personalized accessories:

• Pumping bras (Lupantte and Momcozy are very similar and perfect for pumping purposes, but I don’t like them for regular wear)
• Medela PersonalFit Flex Breast Shields/Flanges because they are more comfortable than the kit flanges
• Duckbill valves I use these instead of the Medela white membranes and they SO MUCH easier and have better suction too
• Nipple Crack balm as nip & tube lube
• Medela storage bottles I have about 12 of these now and they are great for pumping and then immediately chilling in refrigerator without needed to transfer my milk to another container. And I use lanoish bags for my (tiny) freezer stash.
• Simple Modern tumbler for water
• speaking of hydration: lots of sparkling water (spendrift is $$$ but worth it) and coconut water since I’m notoriously terrible at drinking pain water