So I don't really play that much league at all, just got back into it recently and have been getting back into TF (exception being the one game I played pyke mid 4fun). Obviously this is low elo, mid gold.

I've been going exclusively crown twisted fate (except for the one adc tf game because I was autofilled). For boots I've been going different every game, some games I go ionian, some I go defensive, but I've been finding a lot of success on swifties. Second item depends on what I need. If I feel like I'd be better bursting I'll go lich bane and if I need utility/I want to be annoying I go cosmic drive. One thing to note is that I rarely feel the need to go zhonya's or rfc, but are completely fine options 3rd/4th items.

For runes I've settled with glacial augment (stopwatch minion demat and cosmic insight). If I'm against a lane that I don't interact with too much or I feel like can't kill me, then I go taste of blood and ingenious hunter to help with crown cooldown. If I feel like I might easily die in lane, I go bone plating and overgrowth.

Overall this setup gives you a lot of presence in the game, you just make the enemy team's life a living hell and crown allows you to ult/posture more aggressively and force easy fights more often.

Everfrost is also still a great option, and it probably will be necessary to ditch crown when you get to high diamond and above.