Car Trailer Tires

I did some searching but came up with nothing. What are you using for trailer tires that won't fall apart in 2 years of use? My first set of trailer tires lasted over 10 years and 100,000+ miles, Not even a flat. Goodyears.
After that I have used several brands including Goodyear and 3 different trailers and like stated earlier 2 years max.approx 10-12,000 miles a year.
I picked up my new trailer at the factory and had a flat on the way home.:angry7:....... Please Help !!!!