Those do look good.
Aquarium Coop sells the Ziss valves that they use in their warehouse and store and they've never steered me wrong. I also enjoy all the Ziss products that I've used.
https://www.aquariumcoop.com/collections/air-pumps/products/ziss-premium-air-valve
I’m sure you’ve looked already, and would like a recommendation from someone with experience, but there appear to be some inexpensive options available from a certain online retailer that have 4 outputs. Good luck!
**edit**
I’m not sure that having the outputs built into the pump would be...