Alternative to DC ToR switches instead of Cisco FEX solution

Hello,

Currently we're using Cisco Nexus solution with FEX ToR switches in every rack - called top of the rack. It helps to save cabling and etc. But already few years when Cisco FEX solution is deprecated, instead of them they're offering to buy Nexus switches.

I'm curious what other companies are using ? Is there're anything simmilar and comfortable like Cisco Nexus with FEX DC solutions ?

Thanks