Should I have a hairline lowering surgery or a hair transplant lowwer surgery?

You have not only a high hairline which seems to be your primary concern, but your temple promenances are eroded. If you want to address the temple areas as well as the hairline position, then a hair transplant lowing is a better procedure as shown with the dots that outline where a hairline lowering procedure can not address. Here is an example of such a patient: https://baldingblog.com/wp-admin/post.php?post=22445&action=edit