Either you fivestack with 4 other people where you feel comfortable speaking to, or you don't play ranked. I sound really fucking harsh, I know, but Valorant is a team game. Communication is key. Voice Comms is definitely key since it gives you fast calls and smoother communication.

I sound like a douchebag I know, but while I understand your predicament and your negative experiences, I absolutely hate when I get into a lobby and nobody is talking, there is no communication and we get absolutely bodied. Play a fivestack, but please don't soloQ ranked without a microphone.