Inserting the socket may be a bit tight. You can heat up the socket or heat up the print and press in with a vice. It's better than the alternative as you definitely don't want the socket detaching when handling a hot nozzle.
If you like, you can alter the tolerance using the Onshape link here.
Both PLA and PETG would work well, as would many others.
The author marked this model as their own original creation.