Almost all suppliers ship fragrance oils in plastic bottles. The 2 exceptions with which I am familiar are WSP and BB. Nature's Garden, Aztec, AH/RE, Daystar all ship in plastic. It is lighter and cheaper to ship and far less breakable. If you don't want to order from suppliers that ship in plastic you will be very limited as to where you buy. Many people transfer their FOs to glass after they arrive, I don't bother but it wouldn't be a bad idea.
eta: I love NG's Vaniglia del Madigascar, slighly floral very vanilla not too sickly sweet.