what kind of exterior HDRI are you searching for?
have you tried looking here?
https://hdri-haven.com/hdri/cobblestone-square-at-night
https://www.poliigon.com/hdr/city-condo-courtyard-night-outdoor-sky-hdri/4134
https://www.poliigon.com/hdr/clear-night-alanya-highway-outdoor-sky-hdri/3549
https://www.poliigon.com/hdr/clear-night-alanya-residential-outdoor-sky-hdri/355...
https://www.poliigon.com/hdr/clear-night-alanya-sidewalk-outdoor-sky-hdri/3555
https://www.poliigon.com/hdr/clear-night-city-parking-lot-outdoor-sky-hdri/3581