Network: config needed to add content filtering to win server 2019

– The network is setup in this regard
ISP router/Huawei AR2200 / -> switch/ Cisco 2960/ -> then computers including the win2016 server as one node.
– We want to add content filtering specially block youtube using free softwares but we dont know which will do the job better and if the network setting must change.
Any advice is appreciated.