Just sharing what I learned on mine, maybe it will help someone:
2022 Ram BTS
Zone UCA's
Eibach Pro Truck Coilovers set at about 5 1/4" on the threads. I think that puts me at about 2.5" of lift (no more ORP springs in the front, so that is not a factor) My truck has about 1/2" of rake.
RAM TRX Wheels (I actually wanted the all black Ram Rebel wheels, but they were harder to find and I finally gave up)
275/70/18 Toyo R/T Trail
The RAM TRX Wheels are 18x9 +19 (where as stock BTS Wheels are 20x9 +18).
I initially purchased 295/70/18's cooper st maxx (Discount Tire stocks lots of Coopers St MAxx in that size) and bought a set of 1/4" Bora slip on spacers (hubcentric to rams). From what I had read, the 1/4" spacers leaves enough lip there for the wheel to still align to the hub and leaves enough threads you dont have to change the lugs.
Well after I bought them and went to get the new tires mounted up I found out Discount Tire wont service with slip on spacers.
Since the 295 was making contact with the UCA we took them off and replaced them with 275/70/18's.
I could have put the slip on spacers on but I dont want to deal with rotating my own tires or going to random tire shops where I have to wait with my vehicle for tire rotations, etc.
While I think it looks pretty good. (I wanted the 295/70/18) I can say that 275 wide tire is borderline for that 9" wide wheel. I dont plan on getting in a situation where I really need to air down signficantly but if I did, I would either want a narrow wheel or wider tire. I think had I found an all black Ram Rebel wheel I probably could have run the 295 without a spacer but it would have been VERY close. Other than airring down signficantly I think this setup should perform really well on the road, towing, in mild offroad such as ranch roads, etc.
I can say these Toyo R/T Trails are VERY quiet and have excellent road manners. One really nice thing about these 275/70/18s is they are only 56 lbs. Keeping the wheel down closer to 33" and the weight down closer to 50 lbs keeps the truck performant, I dont even notice difference in stock from acceleration or stopping performance.
I also bought a 1" rear spring spacer that I decided not to install. So I have that AND the Bora wheel spacers I could sell if anyone is interested. Otherwise they are probably going to waste away in a shelf on the garage.
The changes I would probably make is this exact setup but probably with ICON coilovers and shocks (That is what I had on my Tundra and loved it). I would look for a UCA with less protrusion toward tire. I would probably run the 295/70/18 - though on an 8" wide rebel wheel I think this 275/70/18 would actually be the best performer for the most use cases other than looks.