Here are the smart switches we recommend based on your answers:
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Smart Switch Recommendations
These all require a smart home hub with Zigbee capabilities. I prefer to use Home Assistant with this Zigbee USB stick (which also does Z-Wave). There aren’t a lot of choices for Zigbee switches. In addition to the ones below, you can use Aqara switches, which are Zigbee-based. They are designed for their smart hub but work with many third-party hubs. YMMV.
Additional Popular Smart Switches
Additional Smart Home Device Recommendations
Here are additional smart devices most people love. I also recommend you read my book, The Smart Home Manual, for help planning and configuring your smart home.