Both are about chasing your dreams without giving up. Both have really good romance and a bunch of close knit friendships and brotherhood. The difference is that one is esports and the other is sports.
Both dramas have a male lead who was a prosecutor but left and became an attorney. Suits has more bromance while suspicious partner has more romance.
Both are amazing law dramas that you should check out. I Hear Your Voice has a bit of a thriller aspect to it though.
Similar vibes about a robot falling in love with a human