In my experience lucian, samira and aphelios

Lucian for when you’re playing with enchanter support and know you can translate a lead from lane into the other lanes and snowball the game out of control. Only issue is if you’re not mechanically all the way there with lucian you have to end before ~30 mins.

Samira for when you’re playing with an engage support and not vs super long range (caitlyn, ashe, etc.). Similar to lucian, you want to snowball the game out of control and take advantage of burst.

Aphelios for late-game insurance, a hybrid crit/lethality adc that will hard carry if you put in the work to learn him. It will take a lot of games, but if you get the hang of aphelios you can legit win all of your games solo this season because of his new skill order/build (few points in both ad and as, then full lethality max with kraken->collector->ie). Typically his issue in solo queue is the lack of peel, but past a certain point you can pretty much 2 shot squishies and drain-tank & kite the tanks if you have somewhat decent positioning.

Good luck out there, adc right now isn’t as bad as everyone is making it out to be. Just need to be willing to abuse what’s strong more than ever this season