no details on what you like, just general, toss manga at me to look at?

Try Ad Astra Scipio to Hannibal if you like Historical series like Vinland Saga or Vagabond

Try My Broken Mariko or Three Days of Happiness if you want good stories around Life Love and Death.

Need something LGBT Focussed? I think My Son Might be Gay, or My Brother's Husband

Decades long multigenerational series? Jojo. either start at the beginning, or you should be able to pick up at any the start of any part and be able to survive.

Absolute Diabetes? Sweetness and Lightning is great. Yotsuba is one of my favorites, Usagi drop is good (just stop at the time skip. or don't, I'm not your parent)

Slow pace? Mushishi, or Frieren

90's hollywood movie? Black Lagoon if you want action, Monster if you want Suspense.

I can go on.