It's been a while since I looked at the Heavens-Above web-site.
I've used this site in the past for orbital predictions of the International Space-Station and other man-made Earth satellites, but I see that it's now got quite a comprehensive page on currently-visible comets too:
http://www.heavens-above.com/Comets.aspx
Then click on the hyperlink for an individual comet to see its finder-charts and Solar System plot.

If you take the trouble to set up a UserID and enter your Lat/Long co-ordinates, then it will indicate the visiblilty from your locale. And if you tick the Remember Me box, it will be ready set-up for you the next time you visit the page.