It's likely you're mistaken about not having a network. Are you married? Does your spouse occasionally leave the house? I've known people who got jobs because they went to their partner's company party and brought up what they did. Most the "network referrals" people get are from people they've never met, but who are their best friend's hairdresser or who've once talked to their ex-boss at a conference or something. If you're in a conversation with somebody that progresses far enough that you get their name, tell them what you do and that you accept clients.

You could also cold-email other freelancers -- usually freelancers in an area all know each other and tend to have times when they can't take on new work but some clients still show up.

If you're in something web oriented (you do say React/TypeScript) consider partnering with a freelance designer.