sdwan vpn?

hi,

We have a fortigate 60F with wan1 and wan2 with different ISP's combined in an SDWAN.

For remote workers we would like their forticlient to connect to wan1 or wan2 and switch if one goes down.

We could use forticlient and add multiple remote hosts but then we need to make double policies for our vpn.  This situation works but created overhead for managing the policies.

For the moment we use dial up ipsec vpn.

Any other possibilities?

thanks