I do enjoy TTA, SS and Robin. I have read the Infinite Frontier secret files, but they’re just okay IMO

So... how old is Lian Harper? Because the last time we saw her, she was a toddler and crushed underneath several tons of rubble. Ugh I wish this headache could be over

By the time she was crushed by rubble in New Earth, she wasn’t a toddler; she had started grade school, around 6-7 years old as far as I can tell, but feel free to correct me. At the moment, she appears to be in her early or mid-teens by my eye, although I know at least another user thinks she looks to be in her older teens, which I’d disagree with. Her age isn’t explicitly stated yet at the moment, although it may come to light later. Many people’s ages are different in PE than in NE, and even though Death Metal has folded some of pre-Flashpoint’s lore into things, not every character’s age/age differences compared to others have been changed. It’s a “take it as you learn it” thing more than a “try to logic/reason it out” thing.

I thought she was around 5? Regardless, it's still so confusing... I think we need a new Secret Origins series to recap where we are now and straighten out some of this continuity

Now Lian Harper goes by new name, Shoe /Cheshire Cat.

although there is nowehere current age is mentioned in Catwoman series. I think she is in her mid-teen years too.

Though she should be in late-teen years in Future State: Catwoman , where it is set in future.

I've read a decent amount of titles and my favorites so far have been the Tom Taylor Nightwing (from 78) and Joëlle Jones' Wonder Girl (which so far has only one issue so very easy to grab).

@ScavengerOne if only people kept simple usernames with less numbers lol

Swamp Thing, Suicide Squad, Titan Academy and Detective Comics have the best stories right now. Nightwing has good art and characterization, but the story isn't that super though. The art for all of them is good really. And Detecirve Comics actually has a detective story and a murder mystery. Titans Academy and SS are connected and have a mystery of their own.

Infinite frontier is just all the books that come out after infinite frontier #1 right? If so then I’ve enjoyed Robin, Batman, Detective Comics, Action Comics, Superman, Green Lantern and the flash

Basically, yes. The “Infinite Frontier” era refers to all books published in March 2021 onward.