Recommendations

They both have game thing in them although in different sense in FIYS have professional gamers and lucky first love have company that develops a game
Teasing between CP is very similar and they way they react in presence of 2nd leads is also very similar if u liked FIYS u will like this one for sure

They are both sports dramas with one theme being growing up and maturing from child to young adult/adult.

Go Fridge is Chinese adaptation of Korean show Please Take care of my refrigerator! Similar in concept and theme, chefs cooking food with ingredients from celebrity fridges!

Chef Lee yeonbok (Featured on both shows) this time goes to USA to share his Korean dishes on his Food Truck.
Shinwha members (who were guests on Please Take Care of my Fridge) are here to join him on his American trip and help cook as well!

Chef Lee yeonbok (Featured on both shows) goes to china and runs a food truck with some celebrity friends!

Chef Hong Seok Cheon (featured on both shows) goes to Thailand with celebrity friends and attempt to run a food truck!
I believe Shinhwa's Minwoo was also one of Take care of My Fridge guests and you can see him cook with Chef Hong here~

Kim Sung Joo is also a host of this foodie show. But instead of multiple pro chefs, it's Pro Chef Baek Jong Won helping struggling Food Trucks, sharing culinary tips, & aspiring newbies in tackling the food truck business.
In the last part of this series is a Food Truck competition ( similar to great food truck race minus the travel and punishments) to see which food truck gets the most money from sales, and winner gets to keep their food truck.

Both dramas are makjang however, that sun in the sky doesn't focus on revenge and on the other hand Second Husband is more on revenge.
Both dramas have the female lead encountered betrayal by her lover by marrying a rich woman to replace the female lead and the male lead will do anything up to extent for his selfish success!

They have same theme, which is e-sports.
The male leads were cool and tsundere.
The female leads were cute.
Interesting storyline

The story is also about e-sports.
Attractive male lead.
Cute female lead.
Falling into your smile has a better storyline

The story is similar between the two dramas. based on high school. please classmate is one of my favourites !!! go for it !!

*Both plots revolve around drug smuggling
*Main leads goes Undercover to find the real kingpin
This Drama is still yet to air I will add more details later

MLs are rich and somewhat blind. In Crush, ML is blind. In Rich Man, ML has Prosopagnosia, a face blindness condition. 

Both are Chinese dramas with MLs having some blindness condition. In Crush, ML is blind. In My Unicorn girl, ML has Prosopagnosia, a face blindness condition. Both have sweet and beautiful romance.

Both MLs are rich, lonely and has disorder (ML is blind in Crush). FLs help MLs to feel better. MLs are also cold on the outside. FLs are strong. Love the lead couple and chemistry between them.