So far I have collected these methods.
1. Hitting up active customers on Twitter, just writing a short message: "Hi Xyz, just saw that you are using ABC quite actively. Do you have any feedback for me, that would help a lot"
2. If your product is a widget, send automatic emails if someone embeds XYZ successfully to their page.
3. Provide a portal to your customers where they can ask for feature requests, post a bug etc.
4. Do in-app messaging, or use chatbots for this purpose.
5. Feedback boxes: The chances of users reaching out to your support team in case they need something or find something to be broken are minimal and using feedback forms could help users in reporting you when something isn’t working right.
6. If none of them work, try bribing people. (It always work). Send them a gift voucher in exchange for feedback call or give them a 30% discount coupon for 3 months. (Latter works if the person is a paid user.)
If you found it useful, you might like my practical marketing newsletter 👉
https://indieletters.com/ (1762 subscribers)
Do you know any other method, please add it here.