P205/75 R14 or P215/70 R14

14" tires are not hard to find online. They don't stock them at local stores because they don't sell them or stock them. They are busy making money on soccer moms daily cars and jacked up 4x4's

Go here https://www.tires-easy.com/tires/
Go to Walmart, good prices and free shipping.

Don't go to the tire rack or discount tire online. Too expensive.