unpopular opinion: there should only be one ranked Q
It shouldn't be Solo Q, league of legends is a team game and from my experiences with solo Q it hardly feels like it. Solo Q seem to have this mentality that your team is garbage and your mission is to get so fed that it doesn't matter how hard they feed, there's little strategy in champ select besides ban the op or fotm champs you don't wanna deal with and pick your most comfortable carry. I don't think solo Q Acura tell reflects how good you are at league of legends.
I don't think dynamic Q is the right answer either, it's horribly unbalanced and it creates a divide in your team, either between premades or premades and solo players, while dynamic Q potentially shows better team play, it's rarely in a fair fight and doesn't hold the compete integrity and even playing field a pure solo Q would offer.
So solo Q is fair but inaccurate to what real league of legends is, while dynamic Q is closer (not perfect) it's horribly unbalanced and creates disputes in between reams (thus ruining true team play)
The only ranked Q should be 5 man ranked play, it's the only accurate reflection of true competitive league of legends. They should create other ways to show off and reward your solo player skill, but I think your actual rank should should be determined by how well you play with your team
Not everyone just has 4 friends they can que up regularly with (I know I dont) but I think the club system could be updated to be like a ranked clan that if you wanted to play ranked you could invite like minded players from your club.
That's my thoughts on it, it's not a popular opinion and its super unreasonable, but I think in a team game your skills should be prioritized as team play>everything else and 5v5 ranked is the only way to get a fair and accurate rating of that.