What do I need to look for in a Domain name to flip?

[yelen]

What type of domains will be easier to sell ?

[pavel]

There are many factors to look it. Like if it is some branded domain, there are higher chances that you will find a buyer for the domain.

[seoguy]

You should check if there can be potential interested people in that domain. Then register the domain and afterwards send an email to interested parties. You can then convert to client based on responses you get.