We highly recommend ensuring the on-page SEO is correctly marked up and without errors. It might also be worth considering which hosting provider you use as we have seen a jump in our rankings by switching the hosting platform of our website ( officebroker.io ) when changing providers. Double-check your backlinks for any considered toxic and use Google's search tools to disavow any working against you. Finally do a website SEO audit to ensure you are targeting the correct terms against your competitors. Good luck, it's not easy and is an ongoing process.