I just purchased this Sunex 3/4" adjustable hose grip pliers for a heater core replacement in my daughter's Taurus. They worked amazingly well to get the heater hoses off the fire wall. They were $25 on Amazon, made in China. The build quality was ok but not great, but they got the job done.
https://www.amazon.com/dp/B07PGHVZJH/?tag=atomicindus08-20
https://www.amazon.com/dp/B07PGHVZJH/?tag=atomicindus08-20