Mesh systems used to be quite expensive, however they are very affordable now.
Most system come with antivirus, malware which could be free for 1 month, 3 years, or lifetime.
It really depends on how much you want to spend, but mesh systems are far superior to the plugs. Mesh systems can be connected via wifi, but better with ethernet cables.
Medium to high end Asus Routers also support aiMesh if you want to consider two router set-up or their pod system. Most of these come with the lifetime malware/antivirus.
The TP Link Deco M5 is also good. 2 pod system less than $1100. 3 Pod less than $1600. Also comes with 3 year malware/antivirus.
The Orbi Netgear are nice, but more expensive. 1 year a subscription for antivirus/malware is USD69.99. Only 30 day free trial.
You can connect a smart speaker (google or Alexa) and control your home with IFTTT.
JBL Link 20 - 50% Off