Carlisle radial trail or usa trail for the 14’s. best bang for the buck, we sell a ton of them at work.
Could also put carlisles on the 16’s we havent had maybe one factory defect carlisle in the last 8 year we have neen putting them on.
What size 16’s on your trailer? If they are a standard truck size you could always go the michelin LT tire route. Aint gonna beat a michelin.