Does anyone know if there's anyone on YouTube who has all OHSHC season one episodes in English, not just English subs?

They have OHSHC season one episodes on netflix. That's where I watched them all. Hope it helps.

The closest that I can find is from Théa Kaisho, but they only have episodes 1-13 dubbed. Your best chance would probably be from Netflix o a dubbed anime site though :P

Thea kaisho o TheGameMaster1998

thats illegal

Sorry to burst your bubble but because of Funimations copyright laws no one can subir the entire episode in youtube. I recommend anime On Air. tu can watch it on any mobile devise and on the computer.