Yes, bridgy and ghost. Also #Hatsu comes to mind. They have a comparison to Bridgy Fed on their docs site:
https://github.com/importantimport/hatsu
(Possible issue is the status of the project.. no commits for 6 months)
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A tour of the fediverse delightful experience curated and looking for the minimalist projects may also yield some viable candidates for you, like in #Blogging category..
https://delightful.coding.social/delightful-fediverse-experience/#blogging
There are some interesting #SmallWeb philosophies wrt social networking, like the project #Seppo by @mro and funded by @nlnet focusing on simplicity, robustness, and ease of use.
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