What are some of your favourite older series?

(I asked this elsewhere yesterday but think this is probably a better place for it lol)

I used the 'top manga' feature where it gives you the top current works, and the top from a random date. I got February of 2011 and forgot how good so many of these older series are! This site seems a lot more active now than in the past so I wonder if we could give a shoutout to series you think have maybe been lost to time!

If you haven't read this yet, I recommend it:
https://www.mangago.me/read-manga/smells_like_green_spirit/

Even without any interest in the central game, I think this series is amazing and never discussed enough:
https://www.mangago.me/read-manga/chihayafuru/

A personal favourite from when I was younger, rip to my fav 2nd ML:
https://www.mangago.me/read-manga/tonari_no_kaibutsu_kun/

٩(๑❛ᴗ❛๑)۶