Seeking Solutions for Finding Personal Business Emails and LinkedIn Profiles

Hello everyone! I wanted to check if someone in the community here could assist me with this one. We have a list of generic business emails (info@, sales@ etc) and we want to find either personal business emails (john@company) and/or linkedin profiles, as a more direct approach on the prospect. Our thinking so far is that the linkedin company pages have a website possibly associated with the domain from the emails. Does anyone have faced/overcome any similar issue in the past or could think of a workflow/solution for this one? Thanks in advance! :)