In view of your situation, I suggest that you give your father a surprise. You can mail him a gift from another place, or call the gift shop and arrange for someone to deliver the gift to his door. The gift for your father is not expensive, but your personal intention.
Special health care equipment: Physical health is the most important thing. You can buy a special health care equipment for your father to exercise. Like a waist massager, a foot bath, a massage bed, a treadmill, etc. It can be delivered to your door and give your father a surprise.
Flowers are also needed on Father's Day. You can go to a gift shop and customize a bouquet of flowers. You can choose evergreen, phlox, lily, hyacinth, yellow rose, etc. for your father. It is best to attach a card expressing your blessings.
According to your father's preferences, you can choose some interesting items, such as music e-books, 3D craft inner carving, personalized watches, luminous furniture, real dolls, etc., to open your father's eyes, hehe.