I would recommend Green Tractor Talk.
https://www.greentractortalk.com/
Even if you don't own a John Deere tractor. The people there are very knowledgeable and friendly. The forum is not only about tractors. They cover everything related to tractor usage.
Join up and introduce yourself here:
https://www.greentractortalk.com/for...roductions.63/
Forum to check out on land questions:
https://www.greentractortalk.com/for...-gardening.59/