Most often it makes more sense to map the same ports on every intermediate machine.

1Host super
2  Hostname
3  IdentityFile ~/.ssh/mykey
4  User myuser
5  LocalForward 8001 localhost:8001
6  LocalForward 8002 localhost:8002
7  LocalForward 8003 localhost:8003
8  LocalForward 8004 localhost:8004

This is good for interactive sessions with multiple servers. For single servers, reverse proxy tunnels are more efficient.