Trying to build a classification for these ideas is a fool's errand, but I'm gonna try.
Neat little proposals that Europeans/East Asians/most of the developed world has thought of but is just completely alien to Americans: Short work/technical unemployment/Wage Guarantee Fund, paid sick leave*, subsidized childcare, the Biden buy American public works project(??)
Revolutionary for Americans but existent in other countries: Medicare For All (single-payer or other form of UHC), Federal Jobs Guarantee, Land Value Tax (in its full Georgist form, either as a single tax or in countries like Singapore or Hong Kong** where land can only be leased from the government)
Sweeping ways of thinking: MMT, Universal Basic Income (both in its libertarian negative tax conception or in a sci-fi post-scarcity fully automated luxury space communist forms), the Green New Deal, One Billion Americans
* wait no, that's just a common policy, Samof94 must've been trolling
** not 100% clear if that's how it actually works in those two examples
Universal health care (since you seem to be including any form of it) probably belongs in the first category, since 1. it's less revolutionary than Americans think it is 2. it's something the vast majority of the developed world has.
