Thanks guys, you've been awesome. I've got some new lyrics to learn :). Also discovered Nightwish is a thing, so I'll be adding that. It seems there's a treasure trove of good songs to sing in Scandanavian Folk Metal that are quite pleasant.

I like to sing while I cook and clean, and have a good singing voice, but I'd like to sing something a little more pleasant than various metal songs for anyone who has to be in the house with me while I clean. Not that they aren't nice and melodious (or else I wouldn't be singing them) but the content is often angry or sad. No one has complained, but it would be nice to sing things with happier content, or at least neutral, for myself and all listening. More importantly, I want new songs to sing in general because I've been singing the same stuff for a while, and this is a good way to be introduced to new songs that I wouldn't know about otherwise.

tl;dr Please name me some songs, artists, or styles that I can learn the words to and sing around the house.

Edited to add: I've been told I'm an alto.