We got ours as a take off from my consulting business name - Polaris is the name of the North Star, and we like to sail boats and hubby was in the Navy and you use the North Start to navigate by, and in my consulting business, I help attorneys navigate healthcare records and such for their legal cases - thus "Polaris" described some of what I do in my consulting work and it also fit something that is part of our personal lives. We decided to continue the Polaris theme for our farm name. Adding the word "star" to it, helped it roll off the tongue easier and differentiate it from other farms that were using "Polaris" and "North Star". So we ended up with Polaris Star Farm. Because it isn't tied to a town or a piece of land, it can travel with us, since we have a goal of moving to a much larger piece of property.
If you want something totally unique to you, do an internet search for the name, also do a search to see if the name has been taken by anyone on Facebook, Twitter, Pinterest, etc, and also if anyone has registered that name as a domain name already. And make sure to search using variations of the name, adding in hyphens, etc.
Once you come up with a name, make sure to immediately register it as a website domain name - even if you have no plans to put up a website, that way nobody else can take that name and use it. And also make social media pages under that name. If you don't, it leaves it open for other folks to name their stuff by your name, and then take the website domains away from you and the social media pages - which if you ever decide to sell anything, people could confuse you with the people who have the same name as you do, but they took the names first online. Also, if you don't claim the website domain name and social media pages under that name, there are crummy people who will take your farm name and register a domain name and put it up on social media sites, and then try to sell you the domain and social media pages at an incredibly inflated price.
So always think ahead, and if you're going to do a farm name now, then make sure to protect that farm name for your use in the future even if you don't have any plans to do much with the farm thing right now.