To find a small Survival Server that suits your preferences, it is best to look through a Minecraft Server list and sort the servers by the number of players online. A small server could be defined as any server that has less than 100 players online, but this number could vary depending on what you are looking for in a server. If you want a more intimate Survival experience, then a smaller server might be the way to go. You can get to know the other players on the server more easily and form closer bonds with them. However, if you prefer a more bustling and active environment, then a larger server might be a better fit. No matter what you are looking for, be sure to look through a few different server lists to find the ideal sever for you.