All I can say is that they both have similar vibes. FLs are both bright, somewhat naive, and have strong senses of justice. One already is what they call a "hero of jianghu" and the other is trying to be one.

Both amazing comedies!

Modern Man travels to the past and uses his modern knowledge to improve the lives of the kingdom... It's basically the same story but Tang Dynasty Tour has more drama and Man Comes to Tang Dynasty is more comedy

Both have leads who secretly like each other but don't realize it until later. Lots of comedy seeing the leads jealous when other ppl approach the other. Light-hearted romance and nothing too antagonistic within...

Both demonstrate a clear cut cultivation system and show the protagonist training. Both protagonists are geniuses. Though, Once Upon a Time is a lot more comedy-centric. Ever Night also has its cute moments.

Academically disinclined girl crushes on guy genius and eventually even chooses a career to be closer to him.
Very similar vibes and light hearted romance.

Both have people in the past who were frozen and then wake up in the present. And of course, that frozen time comes with side-effects...

I know it's a bit early but this is the first drama that came to mind as I started watching this drama. Both contain parallel world travel. Protagonists live different lives in one compared to the other.

Both have a "system" that sends the female lead to an ancient world. Both have the female lead trying to seek their true love.

I feel with the computer-related majors and the game theme, both dramas are pretty similar. Tho I feel Go Go Squid! has a much cuter feel.

Both series revolve around cooking and are romantic comedies. Fang Da Chu is more historical but both series go pretty deep when it comes to explaining the meals that are cooked.

Both are about Deity-like figures who fall in love with the reincarnation of their former lovers. In Destiny's Love the deity-figure is part of an organization who governs Earth while in King of Blaze the deity-figure is more of a refugee from another planet. Yes, both "deities" are actually aliens.

Both are about an alien who was left behind a long, long time ago on Earth. In My Classmate from Far Far Away, this alien is the female lead while in You Who Came from the Stars it's the male lead. The setting is very different, with YWCFTS being about the adult world while MYCFFFA primarily focuses on the student life aspect and has an overall more youthful vibe. Both equally amazing dramas!