The main 3 websites that get your alerts/pop ups set up remotely are here. You link them with your twitch account and follow the on-site instructions. X-Split and OBS should have similar set ups. I use xsplit and its very easy.
As for an Automated Bot system for Anti-Spam or Chat follower notification. try NightDev & then there's RevLo (Not to familiar with) but a lot of friends like it