Would like to see a new write of of resources that are good for running a consulting shop these days. Sure I have some things bookmarked from previous HN threa

Would like to see a new write of of resources that are good for running a consulting shop these days. Sure I have some things bookmarked from previous HN threads like open-source- contracts to use, contracts, communication tools, project management, milestone sharing, invoicing and such perhaps? demo - sketch mockup sharing and such? whats the popular freelance tech stack these days if one was going to go this route today?