Isn't Ryuuachi or whatever his name is the guy that often tends to drastically god mode with his speed to the extent of even claiming auto hits and traveling several miles, attacking and returning at his prior position in 2 seconds? >> If that's the case, acknowledging him is like acknowledging Minto as the strongest. Cause, you know? He is the son of god. <<
I lack an actual list, however, I see your concern, people that have barely been around for months or never really had training and what not claiming ridiculous speeds. Yes, that's like acads claiming juubi level chakras, however, anyone can obtain speed similar to all those that have been listed about as long as they've worked as hard as them to obtain it.
Personally, I have fairly great speeds, however, nowhere near great enough to be placed in such a list IF we exclude techniques of sorts.