Yes, a password manager will help to generate account logins and track them easily for you. But also if your email provider supports it, set your username email address with a +prefix specific to the website/service so you make the account unique, have traceability and isolate your risk if your email or account is sold or leaked. E.g. name+website@example.com

Not every website or service accepts email addresses with plus sign prefixes but this is handy for most.