@Grace470 if you want the guest to have the inconvenience of having to find somewhere and move, then I agree you should help her find somewhere else in a room by herself preferably not directly next door to another bedroom and offer to pay her Uber to transfer. There may be additional costs involved for the room.
Quite honestly if the guest snores loudly they shouldn't have booked a share room.
Alternatively you could do this for the guest who is complaining.
Whichever approach you take will involve additional work for you, likely to have some sort of cost involved for you and some tactical negotiation on your part.
By the way I notice that you do have a number of other reviews where guests have complained about late night family noise as well as noise from other guests, so it might be worth reviewing what you can do to minimise noise in the house and include quiet time rules for guests and the family when you have guests.