I keep running into recommendations for Goodyear Endurance tires. My 2019 2108DS currently has offbrand ST205/75R14's and this is on my list for this year as well.
Keep us posted as to what you do. For example, I'm not even sure who can/will replace the tires (obviously a dealer or trailer outfit could). I suppose I could bring them in as pairs to a tire shop and not haul in the trailer.
Goodyear Endurance would be a good bet. Put on my Micro Minnie a couple years ago. Also just took delivery of a new Micro Minnie 2225RL this past Nov and it came with Goodyear Wranglers with nice deep treads. Driven from Maine to Florida where I am now and they've done well on the road.