I haven't seen anything on anyone other than Hakeem Jeffries (hard pass). I saw a very obscure blog post on Discourse advocate Sherrod Brown - who I, of course, think would be a great choice and is being woefully under-utilized - for the Senate leadership.
For the House, there are plenty of good candidate imo, but I have no idea who has expressed interest. It, unfortunately, almost has to be an older white person since a younger POC like AOC, Omar, etc. would automatically trigger dissent from shit kicking centrist Dems.