I’m (26,f) seeking advice to help/support my partner (27,m). We’ve been together for over 6 years and he has been struggling with depression for at least 3. I failed to recognize it as depression at first. He has not been diagnosed. He actually refuses to seek help/treatment and says he doesn’t believe a doctor or a therapist can help him. His struggle has really affected his life as well as our relationship. I have gone through periods of depression in my life and I try to be as patient and supportive as I can but I am really at a loss for what to do anymore. A friend recommended I do the research for my partner and find him a therapist, maybe even schedule an appointment then give him the choice to utilize it (I know doing any tasks can be overwhelming for someone who is depressed). 
My question to anyone who has been in either my place or my partners place- is this a bad idea? Could it potentially worsen things for my partner? I don’t want him to feel forced at all but also he is not seeking out resources for himself. I just want to put it out there as an option but I feel really conflicted about it. How do I even approach him with this lovingly?

Thank you.