You can say '跟我来！' -- gēn wǒ lái ！
跟 (gēn) means follow
我 (wǒ) means I or me
来 ( lái) means come. If you want to say 'coming' you can say '来了' -lái le

If you want to be polite, you can add '请' (qǐng) meaning please.
请跟我来 - qǐng gēn wǒ lái