Lain is a classic. Highly influential piece of pop culture. And even though its story is metaphorical it accurately predicted our incredibly online age, with its strange cultural and psychological problems.
Tank! from Bebop and H.T. from Trigun still give me happy chills when I hear them. Both shows have such great music.
Lain is a great anime with a great opening, but cowboy bebebop/tank not being on top makes zero sense.
We're off to outer space
We're leaving mother earth
To save the human race
Our Star Blazers
Cowboy Bebop, obviously
The first season intro of Dr. Stone.
Drifters! Gospel of the Throttle goes so hard.
Cowboy Bebop - Tank
Trigun - HT
Neon Genesis Evangelion - Cruel Angel's Thesis
Lupin III Part 2 - Opening 1 bad video but best i could find sadly...
City Hunter - Love, Don't Leave Me
Ping Pong the Animation - Tada Hitori
The Tatami Galaxy - Maigoinu to Ame no Beat
Gunbuster - OP
Samurai Champloo - Battlecry
Re: Cutie Honey - Cutie Honey Theme
Paranoia Agent - OP
Macross - OP
Tengen Toppa Gurren Lagann - Sorairo Days
Detective Conan - OP1 or OP3
Nadia the Secret of Blue Water - Blue Water
Dragon Ball Z - Cha La Head Cha La
Death Note - OP1
Jojo's Bizarre Adventure Part 2 - OP
I could probably do more...
Now, endings are another story...
Somehow I forgot about Ping Pong the Animation! Such a touching sports anime and the OP is great too.
I think it's really easy to overlook Ping Ping.
I didn't know or care about the sport at all going in, but the show presented it in such a way that you can't help get invested in the characters. On top of that it's just a excellently told story with a lot of good drama, and I think it says a lot about people and their relationship to sports/hobbies/art/etc. I hope other people will give it a try. :)
I have many, but the ones I can remember are:
OPs:
EDs:
The best part about the Nichijou OP is that Hyadain sang all the parts himself. He just pitched his voice up for the parts that sound like female backing vocals. Lends an extra touch of Nichijou-type humor to the whole thing.
I will paste what I answered in a similar thread from !anime@ani.social a little while back that might be of interest to you:
I usually watch an OP once for a show and then skip it each time afterwards. That being said, there are a handful that I remember making the choice to always watch each episode. In no particular order:
“How Heavy Are The Dumbbells You Lift?” just jumped up a few places in my watchlist. Looks fun to watch
I wrote a little bit about it a while back when I posted a clip for Thanksgiving. Overall, it is a piece of lighthearted fun that was perfect for watching an episode before bed. It also tried to be educational about how to properly work out, while at the same time using those educational segments as an excuse to include a bit of ecchi.
Might be cheating with an end credits sequence, but I would say Psycho Pass' first ending sequence
Honorable mentions:
Some that come to mind:
Ghost in the Shell—hands down one of the best movie openings across the board.
For series:
Cowboy Bebop
Space Dandy
Chainsawman
Cyberpunk: Edgerunners
I liked how they did it with Naruto, changing it up every so often and using some pretty good songs.
Cruel Angel Thesis - Evangelion
Kuusou Mesorogiwi - Mirai Nikki
Bacchikoi amd Heroes Come Back - Naruto Shippuden
Basically Everything from JoJo's Bizarre Adventure. If I had to pick, sheet, I'd say Stone Ocean. Canzioni Preferite is the best non-opening song though!
Attack on Titan - The Rumbling for me personally, had no right going as hard as it did!
Neon Genesis Evangelion's intro is an absolute bop as well
Definitely a tie with a few:
• Mushishi (The Sore Feet song and not Shiver, which is also great)
• Logos Naki World (Hellsing)
• Kibou no Kakera by Nana Kitade (Demsahita Powerpuff Girls Z op 1)
• Rewrite by Asian Kung-fu Generation (FMA '03 op 4)
• Detective Conan op 1 (the one from the Funimation English dub)
YuYu Hakusho - Hohoemi no Bakudan or SMILE BOMB my personal GOAT.
Naruto - Yura Yura by Hearts Grow If I had to choose one.
Sword Art Online - Crossing Field by LiSA hate the show all you want you can't deny this is a 10/10 opening
Saint Seiya Omega - Pegasus Fantasy (Version Omega) by Make-Up
R.O.D. the TV super underrated imo
Tower of God - TOP by Stray Kids I'm just used to the JPN version.
Nisemonogatari - Platinum Disco performed by Yuka Iguchi because everyone already knows Renai Circulation
.hack//Legend of the Twilight - NEW WORLD by Round Table feat. Nino
Highschool of the Dead by Kisida Kyodan & the Akebosi Rockets
Ikki Tousen - Drivin Through the Night by m.o.v.e slightly NSFW
Queens Blade Rebellion - Inochi no Uta ga Kikoeru by Tamura Naomi apparently YouTube hates this opening lol
Really making me wrack my brain here, but that's what I got for now, tried to pick a few that a lot of folks probably wouldn't be all too familiar with. Of course there's plenty more I like that have already been mentioned here like Sorairo Days and the like.