Unfortunately, there is no Nikon grip for the D7500. Nikon did not design the camera to be able to work with a grip and has never offered one.
There are only third party grips available for it, such as the Vello BG-N18.
Be aware that these will not offer most of the added controls found on other grips where cameras are designed to work with them. With these third party, the only control on the grip is a shutter release button and the only way that connects is with an external wire plugged into the camera's remote release socket. This grip DOES NOT have a control dial or any buttons/joystick for AF functions because the camera lacks any connectivity for those. I don't know about the other brands, but the Vello also only holds one battery, so there's no increase in capacity with it. Maybe come of the others accommodate a second battery.
I'm not sure this link will help as far as comparisons are concerned, but it at least gives you a good summary of what's available:
https://www.comparaboo.com/battery-grip-for-nikon-d7500?origin=google&google_params[matchtype]=b&google_params[network]=g&google_params[device]=c&google_params[creative]=431717676469&google_params[keyword]=&google_params[adposition]=&google_params[adgroupid]=106062690931&google_params[campaignid]=9881114630&bs=&google_params[feeditemid]=&google_params[targetid]=dsa-19959388920&google_params[loc_interest_ms]=&google_params[loc_physical_ms]=9032191&google_params[devicemodel]=&google_params[target]=&new_api=true&dest=0&sys_id=0|894&gclid=CjwKCAiA7939BRBMEiwA-hX5J-yHpMyY5DpVRAWtA47EdMh7_nFUDczsQZ0a4TKamZq6Bz-CKPowbhoCCosQAvD_BwE I don't know why Nikon chose to stop offering a grip with the D7500. There were quality, Nikon-brand grips for the previous D7000-series cameras, as well as the D500, all with a full set of controls and the necessary connectivity. The MB-D15 was offered for use with the D7100 and D7200, MB-D11 for use with D7000, and MB-D17 for D500 camera (all with full set of controls, but only a single battery).
Canon has scaled back on the grips they offer, too. They were available for the top-of-the-line Rebel series to the T6i/T6s... but not for the T7i, 77D, or T8i. There are third party grips available for these too, with the same limitations noted above. But Canon continues to offer an OEM grip for their 80D, 90D, and 7D Mark II DSLRs that have full functionality, doubles battery capacity and use internal connectivity rather than exposed wiring.
Personally I've used a battery grip (or power booster or motor drive or winder) on almost every SLR or DSLR I've owned the past 30 or 40 years. To me the controls for shooting in vertical/portrait orientation are every bit as important as the added battery capacity (or, in some cases, faster drive speeds). The added mass of the grip also improves balance when using larger lenses on the camera. Among my current "daily users", all five DSLRs have OEM grips fitted, and one small mirrorless is the only camera that doesn't have a grip. I normally won't consider a camera that doesn't accommodate a grip (but wanted a small, light, unobtrusive, "touristy looking" street & travel camera in the mirrorless).