can we get up to Trio ranked 5v5 matches instead of just duo and team ranked?

I would like to be able to get at least a trio ranked 5v5 match. Imagine if you don't have very many friends that play this game and only three are on and you all like playing ranked together but you can't because you can only do duo it sucks. I know that you can do the 3v3 map but none of us really play that style because we are not really into that map we like the 5v5 play style. You might also say play normals or bots but there is the fact that we all like the competition not only with other people but with each other for bragging rights to see who can get higher in the rankings.

Please consider this riot I think a lot of people would appreciate this so one friend isn't left out. it would also be kind of cool for coordination as well have a duo of friends and a trio of friends things might go a little smoother.

Thank you, Such a Bro