Sorta depends on use. For range/instruction I run two of these-

https://www.trex-arms.com/store/mars...l-mag-carrier/

Esstac makes a double Pistol mag carrier that may be more appropriate for daily carry-

https://www.trex-arms.com/store/esst...double-pistol/

No doubt there are a number of mag carriers out there that work.
Actually, most Kydex, double stack pistol mag carriers will work with Staccato magazines, it may be necessary to lightly heat and mold (heat gun) for a perfect fit.