What is the most secure “keyed alike” system I can buy for multiple devices?

I got these but I’ve heard Masterlock is not well respected in the security industry. Is there something stronger or more secure? I am locking up my kayak and a storage trunk under a carport using a 1/2” galvanized steel cable with looped ends.

https://www.amazon.com/Master-Lock-Padlock-Laminated-M115XQLF/dp/B00FK8U8MM