All the best guys have already qualified. The medal favorites at this weight are Rashidov (Russia), Bajrang (India), Otoguro (Japan), Muszukajev (Hungary), Tevanyan (Armenia), and Aliyev (Azerbaijan). The first four qualified at Worlds, the last two at Euros, everyone else will be an upset if they win the weight. Gadzhiyev is the only wrestler mentioned in my original post that has medaled at 65kg in the last five years.
There's a big difference between routinely beating the best guys in the world and being able to beat the best guys in the world. For the past 15 years, the US at 65/66kg has fallen into the latter category, not medaling since 2006 and only wrestling for a medal once since 2007. Jordan Oliver has never won an overseas tournament, and has been beaten by several guys who have won world medals (Bajrang, Chakaev). Yianni has won several overseas tournament, but can't run the gauntlet of World Team Trials (hasn't made a world team since 2016 Cadets). You need both to win medals, and the US doesn't have a wrestler that can do that right now.