How to locate Instagram Follow button with selenium (Python)

I'm trying to locate the 'follow' button element on an instagram page (using selenium).

I've found the main 'follow' button of a user's page (https://www.instagram.com/USERNAME/) with the following code:

follow_button = self.driver.find_element_by_css_selector('button')

Although after clicking the above element ^, now I'm trying to locate 'follow' buttons visible when you view a user's followers. Click here to see which buttons I'm referring to.

I've tried the following code but it doesn't work:

acc_follow_buttons = self.driver.find_elements_by_css_selector('button')

for acc in acc_follow_buttons[:15]:
    acc.click() 
    time.sleep(1)

I've also tried searching with Xpath, with no luck.

Could anyone with experience in Selenium help me with the code to locate the follow buttons on this page.