INVERTER to use for the "Yellow Jacket 5202 GEAR MOTOR" or buying the GEARBOX (99:1) alone

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I’d need to know which INVERTER to use for the “Yellow Jacket 5202 GEAR MOTOR” with Hall’s encoder (and 99:1 reduction). Or, to know as well the posibilty to buy the PLANETARY GEARBOX (99:1) alone of the Yellow Jacket 5202 or other one similar.
Note: attached the link bellow

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@AlbertSC Welcome to the RobotShop Community. If, by “INVERTER” you mean DC brushed motor controller, you would need one which can operate at 12V (the motor’s nominal voltage), and provide around 1/2 to 3/4 of the stall current (depending on your application), so around 4.6 to 6.9A. Since there’s an encoder at the rear, which is meant to be used with a microcontroller, it would be best to know how you want to operate the motor and how you want to control it before providing additional suggestions.

Regarding if that product is sold as a stand-alone gearbox, it does not seem to be available from our supplier as a gearbox only. Note too that if you are looking for a gearbox only, you will need to find a motor which can be properly paired with it, which involves many factors like the DC motor’s shaft diameter and length, as well as its mounting hole locations and diameters. Normally only people with machining capabilities can adapt gearboxes to specific motors.

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Thanks Benson.
The application is a 4WID (the “I” is for INDEPENDENT) car with “steering by wire” by applying only “Electronic Differential” (neither “mechanical” nor “only synchronised between motors”).
The 4 ESCs we use are for RC-cars and so PWM’s control (with “backward/brake/Reverse” mode) are used from a Raspberry Pi-3B control (and so the “encoder” has the Yellow Jackect Motor could be used in case we’d need SERVO-MOTORS (in Speed, and even in Position by a PID for both), but first solution is by applying “open loop” only). Battery is a 2S Littium one (7.2V). The steering-wheel is connected by a “dedicated 2.4Ghz Wi-Fi” between PC-Linux and the RasPi3.
DC-motor implementation was because we need good “low-speed control” and brushless doesn’t apply.
Suggestions would be very welcome. Thanks you

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Choosing a good motor is quite involved, so the main suggestion is if you don’t have machining capabilities, it’s best to choose a gearbox with the motor already attached.