First of all remember that as a consultant the key is to be well researched about your niche and well researched about your market. Utilise the power of linkedin. Have an amazing website with awesome content and data capture form, use Quora and other question and answer forums, answer questions and consistently post a link to your website. The more traffic you have. The more leads the better. Have an appointment setter service. Have a calendar app to schedule in and set up your appointments, be ready to give your best service and follow up. Follow up consistently. You want to not make the mistakes I made early on which was not following up, the money is in the follow up. It's not a firm yes for your services on the first call.
Keep posting good content, informative content, content thats resourceful, but don't give them all the answers, you need to make them really thirsty then come to you for water. Its like forcing someone to play in sand all day and saying nope sorry all the other houses are lovely, but my house is the only one with running water. Put ads out on social media, Facebook,twitter,linkedin, Instagram, YouTube,tiktok,and the others, advertise in groups, send private messages. Also send a video message. Video messages get more engagement.Give out flyers, and brochures, Do presentations,do speaking events, speak at webinars, podcasts,tutorials,e conferences,write an e book, or a mini chapbook out as a promo service. Get people to subscribe to your newsletter or magazine and through that offer consultation or share your services with a freelance Magazine.