Does emailing a list of people I already know actually lead to clients?
Old school email a bunch of people, all the time. Make a list of people you know, put some context in a spreadsheet, and start conversations. Use your judgment. This one's a straight up ask. This one's "how was camping last week?" This one's "let's meet for coffee, I want to hear about your new business." Be human and reach out manually every day. Message 11 people and five respond, and you'll get introductions to others. The list grows to 30, then 40, then 60. Soon an hour or two a day is blocked off just for relationships. That's what gets you clients: people knowing who you are and what you do.