Mesh network is your answer. They just plug in to normal outlets.
Where you have a shortage of outlets get an extension with USB sockets like this:
https://www.amazon.co.uk/Extension-Outlets-Protection-Individually-Switched/dp/B086X3XT56/ref=mp_s_a_1_6?crid=2DB38GSEM7KQW&keywords=extension+plug+with+usb&qid=1639582695&smid=A2B4OIC4KEVMIW&sprefix=extension+plug+with%2Caps%2C80&sr=8-6 |