Best Tools for Managing Leads, Proposals, Projects, and Tasks as a Freelancer

Hey everyone, quick question. What tools do you use to manage leads + proposals + projects + tasks as a freelancer / small design studio? I’m trying to keep everything in Notion (and I’ve used it for years), but for some reason I still feel a bit uncomfortable using it as a full client portal + project system. There are so many options out there, but it feels like none is really “perfect” end-to-end. Curious what’s working for you (and why).