LAN 1-2-3 with VPN1-2-3 <> PFSENSE <> LAN 1-2-3

[Mars]

Hello everybody,
My company has a project of hosting servers on different LAN behind a pfsense, then linking from pfsense public IP different clients with VPN to theirs servers but I'm not sure I can do the job,

In attachment a schema maybe easier to understand

I've followed that tutorial https://www.adrienfuret.fr/2016/08/04/pfsense-vpn-l2tpipsec/ but it doesn't do the job as it is only one VPN for between one LAN behind pfsense and one LAN in front through VPN.
Would it be possible to have Several LAN to different LAN ?

Thank you for your help