I think we've already discussed
Erased, it's IMO a top notch anime, you won't be sorry for watching it even if you don't like the ending.
Something similar? Only one thing comes in mind - Butterfly Effect (the movie), but unlike that one Erased is a thriller without Cindy Lauper outfit cameo.
Watch it ASAP.
Knights of Sidonia is not a must watch sadly. The season 1 was promising and rough around edges but season 2 is a disastrous harem with plotholes and illogical turns. Not sure if manga is better, if you feel like it, you can grab complete manga in new Humble Bundle:
https://www.humblebundle.com/books/science-fiction-manga-book-bundle
Anime… Skip at all costs.
Ajin had to be made as CGI. Once you get into it, you'll understand why. Sure, it's "cheap" CGI, it's not The Witcher 3 Platige Image trailers quality, but one can't deny it's artistic approach.
Many anime series spawn irrelevant and filler OVA (short spinoff) episodes. Ajin did not do this. First OVA explains a certain incident mentioned a few times in season 1 and is of the same quality as normal serie episodes. But second OVA is a damned
masterpiece.
This second OVA you should watch after the first episode in season 2. No, I don't know where to watch it outside of illegal streams sorry. The series itself is streamable legally on Netflix but they didn't add OVAs (at least not in my region):
https://www.netflix.com/hr/title/80043576
Yes, I've fallen from grace for that bloody OVA, but if it ever gets released on media, I'll buy it. It was released with certain manga issue, limited edition in Japan, I don't know how to buy that otherwise I would. It is not availabe at amazon nor archonia.
Just finished watching season 2 and it's fantastic, it's just as good as season 1 if not better.
For RPG fans this anime is a must watch before you die and not nominating it's villain for the annual award is an unforgivable blasphemy.
Speaking of Netflix, I saw it added
Magi: Adventure of Sinbad. First two Magi seasons were awsome and were airing just about everywhere, but this is some spinoff it seems and is not generally available outside of Netflix. Did anyone watch it, I mean, is it worth a shot?
One more thing, also finished watching
Trickster, series I mentioned that had a few promising starting episodes. Sadly the show gets derailed from the most intriguing part fast and you get filler after filler that's not fun at all. I was yawning out of boredom.
Skip this one too.
Still have to complete also mentioned as promising in some old post Drifters and Yuri on Ice:
https://www.rpgwatch.com/forums/showpost.php?p=1061418868&postcount=136
Why days can't last a bit hours more…