Can we get some harder bots please?

I know this has been brought up before but I seriously wish there there was a bot difficulty somewhere between intermediate and doombots game mode. Granted, I understand that the primary purpose is for players to get acquainted with basic game mechanics. That's great, I'm in favor of that. But then once you learn the game, they aren't much of a challenge anymore, but i still find myself in positions of wanting to learn new things (roles, champions, specific builds) without possibly jeopardizing a normal or ranked game.

The funny thing here is that me steamrolling the match isn't the issue. Whenever I load in i seem to see that I get 3 other fellow bronze players, and then there's a gold or higher Riven main or something (or any high ranked player who happens to be playing whatever is op at the time) that just wins lane in 5 mins, pushes down 2 towers and then just goes and gets kills all over the map. Meanwhile I'm somewhere else and maybe 2/0/2 or something and wondering if I'll even get to build my second item + boots before the game is even over.

Whenever I ask said steamroller about why they are even in the game, their claim is that they just want 1st win of day bonus, which is great for them (and me too I guess), but if every game is like this then how am I really ever gonna get this practice I want in. I can't destroy bots as fast as these guys, that's why I really wish we had something that would at least keep a gold player on their toes. Not sure what Riot is capable of programming but it really would be awesome if they could in my opinion. Just a hard difficulty mode, and maybe something beyond that, call it extreme or legendary difficulty or something.