Need local businesses owners leads at the suburbs of UK, US, CAN,AUS with valid verified deliverable qualied email prospects

hey everyone, looking for a list/recommendations on how to get a good enough lead list of high ticket coaches and consultants on linkedin, Ideally used to use sales nav but for some reason it just gives out a bunch of old folks which is not the ICP, Targeting the younger segment of that market. Any clue how I can get this done, any tools or ? Thanks