Hi! There are a number of LinkedIn automation tools available. Personally, I tried this one
https://closelyhq.com/linkedin-automation-tool/ and I'm totally satisfied with it. This tool allows you to automate certain activities on LinkedIn such as liking, commenting and messaging other users. It can also be used to identify potential leads and target specific audiences for your content. This tool is ideal for those that want to streamline their networking and outreach efforts on LinkedIn.