Bitcoin is valuable because people value it. If you need anonimity you mix your coins - almost every darknet market (likely bitcoin's largest transactional use case) explains how to do this
Complete sets of 1991's X-Men #1 1A/1B/1C/1D/1E gatefold covers were also valuable because people valued them, until people did not value them anymore.
Probably the easiest way is Samourai Wallet
https://samouraiwallet.com/