I weighed in on the thread that Niv linked to in terms of league management stuff.
For your league, 5x5 Ottoneu leagues are not the default. So if you guys post on Slack or whatever, I’d recommend being very explicit that it’s a 5x5 with your question. Otherwise the assumption is that you’re asking about a FGPts league and that might result in a very different conclusion if you’re talking about a keep/cut decision, trade, etc. For example, I’ll write “Ottoneu 5x5: $30 Player A for $30 Player B.”
I’d invite anyone new to Ottoneu to review this thread:
I’ll also say that the best free Ottoneu coverage is on Fangraphs (as much as I like PL). Unfortunately, Fangraphs’ capabilities to find older content is not great. So my advice is that if you see an article that you like from Chad Young or whomever, bookmark it. Because I can’t count the numbers of times where I find something, forget to save it, and then spend 15 minutes trying to track it down. There’s a lot of great content that’s been lost to posterity.