You can have a creature with vigilance attack, then tap them to harmonize in the second main phase if they're still alive
I have reviewed both Rattata and Raticate from this set previously and if you've read those reviews you'll know that I thought both cards were below average, Rattata was extremely poor with a really low HP and only one move that couldn't do any damage, Raticate was a little bit better since it had a free retreat cost, but it also had a low HP and couldn't do any damage other than inflicting a special condition
Beast, Hardheaded and Break both deal cleanly with opposing items, and can come in clutch in certain matchups
Dont know enough about the older T-Chinese cards to add them to the list, but you seem to have them on your list already
While people used to openly celebrate whenever someone could quit their job to continue doing a YouTube channel or to run a card shop full-time, it feels a little dystopian to realise that, for many, Pokmon cards are genuinely the best (or only) economic choice right now