Complete solar kits, from residential to commercial: storage solutions around 14kWp and 16-27kWh on 12kW three-phase hybrid inverters with Fronius and Sigenergy, 20kW systems with Huawei and GoodWe and storage up to 41kWh, up to 61kWp with a 50kW Solis string inverter and no battery.
In a kit the value is coherence: a number of strings that matches the MPPTs, a battery voltage that matches the inverter, cable cross-sections and protection devices already calculated. A system assembled piece by piece works too, but every check has to be redone.
To choose you need annual consumption in kWh, the space available and the meter rating.