Operations manager / expert - digital agency

I'm looking for someone that is able to implement systems where we can easily follow up on our monthly seo clients, recurring hosting, expenses, incomes, following up on partial paid clients, etc... all of this need to be automised as much as possible so it takes less time... (Budget: €30 - €250 EUR, Jobs: Automation, Business Management, Google Sheets, Graphic Design, HTML, Notion, PHP, Project Management, Website Design, Workflow Automation)