Try for VQ for Guardians. If you don't get in, your alternative is to pay for ILL. There will be no Standby line for it.
For Remy, I'd recommend rope drop or late evening (although there's always the risk of it being down), or you can pay for ILL for it.
For G+, the only two attractions that will have any limited availability are Test Track and Frozen. Rope drop one and get first LL for the other, OR if you rope drop Remy, book either Test Track or Frozen as first LL and then hope that the other one is still available by the time you are eligible to book second LL.