I use a blue ox sway pro with 3/4 truck and similar trailer size and it works well
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2024 Artic Fox 3018 5th Wheel
Grand Design 2800BH TT 2021 - for sale
Prior TT 2017 Flagstaff 831CLBSS Classic Ultra lite - SOLD 5/21
TV 2024 F350 DRW - on order
Prior TV 2017 F150 6.5' bed 3.5 Eco-boost Max tow 1800lbs payload
IMO you don't need to spend the money for a Propride or Hensley hitch with a 3/4 ton pulling a 25 ft. trailer. An Equalizer 4 pt. or Reese dual cam will do all you need. I have the Equalizer with a 3/4 ton, 30 ft. trailer and have never experienced sway.
On edit...Now that I know your trailer is 37ft. I will have to say I no longer have an opinion since I have no experience with a trailer that long. Best of luck.
We have a blue ox. Almost at my max weight limits. It works great.