I'm looking forward to Rina's upcoming album. She seems to be making a shift sound-wise from her previous major release. There's a change in themes as well which I guess really suits her current fanbase and will bring even more people in (y'know, the gurl power crowd). I can see her gaining a lot of popularity this year.
Sophie is an artist who I check out sporadically, like you said her music isn't for everyone and is very experimental, the kind that requires you to be in the right mood.
Other pop artists I've been getting into...
Doja Cat - who isn't into doja cat lately? She's taken over the media. Definitely check out her discography, her older songs have a charming sense of humour that's hard not to get hooked on. I hope she doesn't go down too far the badass sexy bitch/flashing muh money route now that's she's mainstream though.
I guess Janelle Monáe counts as pop(?). She has a lot upbeat funky songs. She can vary from sexy to whimsical. Not sure how else to explain it, but definitely give her a try if you fancy some feel good tunes.
Hayley Kyoko popped back on my radar after I realised that she was the same girl from that old Disney movie 'Lemonade Mouth' and she's now known as lesbian Jesus. She released a great EP recently called 'I'm Too Sensitive for This Shit'.
Tasters from the EP👇
As a side note, I'm a big fan of Bruno Mars and I'm eagerly awaiting for anything from him ( and not some shitty collab with a nobody) since it's been years since his last album. He's been too quiet, so I hope there'll be something new in 2020.