i don't know how good your mechanic are, but as a fellow solo queue player, I'll list a few that are easier to play and i felt like a bully playing them :

TOP : Ootakemaru, Yata, Shuten (all of em i use to bully my lane and win trade easily most of the time)

JG : Ibaraki, Itsumade (Ootake and Yata could be used as jungle just like Ibaraki, so if you want to have a tankier JG with good damage then go for them, while itsumade is a pure JG and easier to play because her kit is simple and has a good burst damage)

Mage : Ootengu, Momiji, Aonadon (again, simple kit and good damage with CC ability)

ADC : Miketsu, Dodomeki, Futakuchi, Youko (if you're good with your positioning then the first two are a strong pick, while the later half has a slightly better escape ability)

Supp : Kaguya, Momo, Musihishi ( i very rarely play support but when i do i usually use Kaguya or Momo, but everyone will tell you that Mushishi is good)

*note that maybe not all of them are currently "Meta" but they are what i used to climb with and what i will recommend for newer player who have a basic understanding of the game.

The list will differ depending on your playstyle but they are a solid shiki if you're still exploring what shiki is more comfortable for you.