How can I get my iMac Keychain to autosave my passwords

I mainly use 1Password as my password manager but also have Safari save passwords for ease of use, if it's not one of those 'essential' accounts [where I have 2FA] - I cleaned out my passwords from Safari because I wanted to renew them as I went along with online access this year, sort of a refresh. But now when I go to access a website and use my 1Password the Safari/iCloud password saver is not working, the accessed password is not saved in my Keychain/iCloud -- How do I turn that on again? I have iCloud Keychain turned on my iMac and also iPhone but I'm at my iMac now and no saving is going on.