I have 35 in my password manager. I purge the ones I don't need every 2 or 3 months. I even gave away GOG and Steam accounts to friends after years of not playing games.
Sometimes I have to send a threatening email to delete some accounts. Currently there's about 2 I'm waiting for an answer.
It's gotten worse lately: people just don't delete your account anymore :D. Because of that, I use "hide my email" and put fake personal data pretty much everywhere now. When I REALLY don't care or am just checking the service, I use a burner email.
I honestly wish I had close to zero. I really hate SaaS and I really hate websites that require a login for stupid stuff (like... a barbershop that needs login/password for scheduling haircuts? fuck off).