Chart of Accounts QBO - Landscaping and Irrigation Contractor

My search partner and I closed on our acquisition of a Landscaping and Irrigation Contractor in Northern Michigan. We are starting an accounting migration from Microsoft Dynamics Great Plains to QuickBooks Online. Taking this opportunity to update our chart of accounts to align more with industry standard.

Looking for any best-in-class or demonstrative example COA's.

~45 employees.
Capable in house bookkeeping/office management to manage expense and revenue allocation to COA.
4 divisions: Landscape Design and Installation, Landscape Service, Irrigation Design and Install, Irrigation Service.
Revenue mix 65% landscape (>50% design install), 35% irrigation (>50% design install).