What's a good phone to purchase?

I've had an Iphone 5S for a few years and I kind of want to upgrade because i have no storage space at all

i can't put music on my phone because i only have like 12 gb

so what's a good phone with a reasonable price? I don't want some huge phone, so I've been considering the Iphone SE because it's a simliar size to the 5S but then i'm thinking of getting an android but there are so many brands