I have seen others posters that use the Kirkland Dexos approved oil. My thoughts are if you perform your oil changes on schedule, any proper weight Dexos approved oil will work fine.
I use Mobil1 because I can get it Sam's on sale $29 for 6qts. That said, I wouldn't hesitate to use a Dexos approved house brand if I didn't get such a great deal on the Mobil1.
The differences in Dexos approved oil offerings are not that significant (here come the flames) and become even less important with strict adherence to OCI's. Are some better than others, yes. Does that difference really matter if you are changing it often, no. Often times the only significant difference is the marketing.
Here's a video that contains a new and used oil analysis of the Kirkland Oil (at about 8:45 minutes):
JMHO
No expertise implied or expressed.
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RWT
2020 Camaro RS, V6, 6MT, Satin Steel
2020 Silverado, 5.3L CC, RST, Z71, Shadow Gray
2019 Equinox LS, 1.5L Turbo, Nightfall Gray Metallic