I recommend trying PaperPal because it combines grammar suggestions, paraphrasing, academic rewriting, citation search, and even Chat with PDF in one tool. In my test, I could insert citations quickly and pull answers with sources, and the free plan was enough to explore the core features.
Pros
+Clean, professional dashboard and easy workflow
+Language suggestions similar to Grammarly for fixing writing issues
+Rewrite tools for paraphrasing and making text more academic
+Citation search and library for saving and inserting sources
+Chat with PDF for summaries and Q&A (strengths/weaknesses, etc.)
+Free plan available (I used it in the video)
Cons
-Monthly pricing is expensive compared to yearly
-Human expert services (editing/formatting) can be costly