They are both reality shows that focus mainly on making couples but also have a lot of humor and friendship bonding. You will love some people and you'll love to hate others. You will ship and support some couples and you will pray for some couples to never happen in both shows.

They are not really similar but they're both shows that try to make couples..
Matching survival is a game show while Terrace house is a reality show and the best thing about both of these is watching the relationships forming.

It's not really that similar in terms of themes but they both have incredibly well written characters and they handle relationships well, both friendship and romantic.