Hello CologneGuy,
Thanks for your message. I'm sorry for the trouble you are experiencing with several potential logins appearing when filling from within your browser.
To manage these logins within 1PW I use tags but these are not usable in login fields.
Tags are great way to manage these items by group within the app, but you are correct where as tags are not supported within the browser extension itself.
Does adjusting the autofill behaviour to Only fill on this exact domain
for URLs on a per item/per group basis help to narrow down the number of results you're seeing?
* Change where a login is suggested and filled
You can also try sorting these logins by group per account, per vault. Then, after opening the 1Password browser extension, select All accounts > account name > vault name and search and use Open & Fill for the item needed:
* Get to know 1Password in your browser - Switch Accounts
* Search 1Password
I hope this information helps, but if you need further assistance just let us know. We'll be here for you!