Is there a cheaper alternative to Convertkit for bloggers?

Hello folks, I have a blog with 3,800 subs which is costing $79 per month for my Convertkit account. All the segmentation, tagging and automation is great but it is expensive and overkill for me since I'm not selling any online courses yet.

I'm looking for a cheaper alternative with less bells and whistles (I don't need automation, only segmentation and tagging is enough for now).

Can you please suggest if there is any other tool? Sendy.co seem to work for my situation, but love to hear from others.
Thanks