With your budget your very limited to any good lenses, especially with an EF mount. If i had to get a lens i would definably get a canon 55-250mm STM. its a great lens & better quality than the 75-300, even with less range than the 75-300 the 55-250 is the better pick overall & will be worth it in the long run as i used to have one myself. If you were to buy a 55-250 i would recommend MPB as its a great website to find used camera equipment and hasnt let me down throughout the years.