And faggots here tell you what they'd rate it. Keep in mind their vocal range, and of course song choice helps.
I'll start with pic related. Can be music from vidya, anime or elsewhere.

1. Sunday Morning (full) - Maroon V
2. Bloody Stream - Coda
3. No More What Ifs - Persona 5 Royal OST
4. Puzzle - Round Table ft Nina
5. GUM - Kaho Nakamura
6. ラビリンス - Mondo Grosso ft Hikari Mitsushima
7. Sweater Weather - The Neighbourhood
8. カシミヤのほほえみ - Yunko Yagami
9. Airy Me - Cuushe
10. Waltz - SUNEOHAIR
11. Seaside Vacation - 13 Sentinels: Aegis Rim OST
12. Fukashigi no Karte (Full) - Bunny Girl Senpai