I’d say tightly control your tags. Medium has plenty of life and great writings in it, it is an incredibly rich repository of human thought and creativity, gems hidden in piles of ash, got to find them. I do not intend to be critical and I try to understand and I am in empathy with Medium staffers, but sadly they (Medium) have lost the plot to control the firehose of crap thrown at it.
I found one way to uncover beautiful writing in Medium is to periodically purge and rebuild your reading lists. Needs time, patience. Curate based on your own tags and keywords, search for specific authors may just help. Sort of spring cleaning over and over. At the extreme, delete the account and start over.
Zonbies have taken over Medium. This is a long and hard fight. May the force be with us, ;-)