Similar songs

Hello folks.
Recently I  found some new  great songs and album ( Troye Sivan Blue Neighbourhood , is my addicition ) and I  noticed that they're really similar, Not here to say that they copied themselves lol,
listen  and see, they re definetely  jams !

Troye Sivan  feat Alex   Hope "Blue" Vs Lukas Graham "7 Years Old "



Tanerélle "Siren" ( She is so good !) vs The Chainsmokers ft Daya "




Tanerélle is started a kickstarter crowdfunding to produce more songs, this is the link if you wanna help her
https://www.kickstarter.com/projects/872122403/tanerelle-is-finally-finishing-her-ep?ref=hero_thanks