There is a big variety of tools on the market but none of them is really working and is providing an efficient automation at an affordable cost.
They are, often, just extensions of the Chrome broser and require a constant activity from the user forcing him to spend time in doing limited procedures.
Some tools make real automation but are big expensive.
The solution, if you are looking for a reliable, effective instrument is socializit.com.
There are many motivation for that.
First of all it is cheap and, at same time, solid but the most important reason is that it makes possible a full management of multiple accounts with no human intervention.
Socializit.com is the best linkedin automation tool and has a lot of features you will appreciate so much.
You will be in condition to look for a job in autopilot, to set-up self-managed group lists, to create unlimited lists of people.
Essentially the following are the due steps:
Make a research (Socializit allows same research kinds of LinkedIn)
Give a name to the list created
Add a Bot
Apply your preferencial settings: the bot will do them in auto-pilot