Considered starting backing Ronaldo to City above 3.0 couple days ago when Fabrizio Romano (the "HERE WE GO" Italian journo guy) streamed live on Twitch and offered his views and updates, but market was very thin and bigger market makers never get involved with these cuz they don't like the risk I guess so end up small markets overall, besides some iceberg odrers here or there. Took a nibble later on.
For those that dabble in transfer markets it's probably worth following Fabrizio a bit on
Twitch, think he said he'll be streaming every day until deadline day, top source imho.