Geometric โ the O is a near-perfect circle. This is the roundness you flagged.
Oswald my pick
OUTSIDEthe48
Tall, gently condensed O ยท confident and very legible, with a little warmth. The classic "athletic/editorial" workhorse โ scales beautifully and never looks generic.
Fjalla One strong alt โ most character
OUTSIDEthe48
Tall O, sturdy, a touch of grit. More personality than Oswald โ reads "plucky and dependable," which is very on-brand.
Archivo
OUTSIDEthe48
Grotesque โ taller, slightly squared O. Modern and neutral; less character than Fjalla, more flexible as a wider type system.
Saira Condensed
OUTSIDEthe48
Tall and narrow, contemporary tech feel. Cooler than Oswald/Fjalla โ clean but a little less warm.
Barlow Condensed
OUTSIDEthe48
Tall O, friendly and rounded terminals. Softer/warmer than Saira; a nice middle ground.
Anton probably too heavy
OUTSIDEthe48
Very tall, very heavy, very condensed. Maximum impact but quite shouty โ likely too much for "warm."
The Lab-3 construction, rebuilt in Oswald โ kerning evened, box shrunk & fragile
Your three fixes applied: OโU opened up, DโE tightened, and the box made small & light (3px stroke) like your original. Proportions still tunable once you've chosen the face.
Built blind (screenshot tool still down). My recommendation: Oswald for the safe, confident pick โ or Fjalla One if you want more character. Tell me which O you like and I'll lock the typeface, then perfect the kerning + box in that face.