Maintaining momentum with sci-fi, unethical experiments/moral dilemmas, dystopian books

I’m finally in my reading era after 15 years of barely opening a book, and I’ve learned that I really like books that hook you within the first ~30 pages. 

I’ve loved these books and would like to know what’s your recommendation for my next one ^^

• Flowers for Algernon: became my favorite book. I’ve never cried so much with ANYTHING. I’m a big fan of unethical experiments and moral dilemma books.
• Project Hail Mary: this was a phenomenal book, I loved the pace in which is was written and the science talk. Amaze!
• Dark Matter: loved the science talk and the love story. Great plot twists.

I saw somewhere here that Never Let Me Go was a safe next option but I didn’t like it a lot. Maybe it was too dystopian for my imagination. Also, The Martian is on my list but I’d like to read different authors for now.

Pls help!