In addition to my Leader I have have a Unknown. What’s your price point like? The EAI Brass knuckle is a pretty good bike hehe. Pakes are solid as well.
My Leader bike is okay. I don’t think I’d recommend any of their modern line up as it currently stands. I know a couple years back they had a big leadership transition, so their quality has been suspect since then. Unknown is a pretty solid brand for its pricepoint. I plan on actually transferring most of the parts on this leader frame to the unknown one I have.
If you want to go upmarket, maybe cinelli would be a fun pick or the bianchi super pista is a really tried and true frame. Bianchi also have a really good steel frame if you want to stick with the steel is real life.
Dolan Pre cursa also very solid.
Do you know what components you’d want to build up a bike with? Frameset is only one piece of the amazingly fun puzzle.