What can you Drop Service?
You can drop service anything. The thing is, you should not drop service something that you do not understand, or you will fail. For example, you should not sell SEO or PBN services if you have no clue as to what those services really are. You do not need to be an expert about a particular service, but you need to understand how it works. This will enlighten you on what products can be drop serviced in details.