im a hybrid and massive canasta fan, so cards with psychological handlings is part of what i love...
i'd say on a deeper level, you maybe are becoming a little bored of yer average "take a card, put it back, here it is" kinda effects...so i'd recommend:
stacks
s***t card(s)
and a different framing of who you are...
if you can still get it, lewis jones' Seventh Heaven is a phenominal book, as is his colab with Jack Avis - Ahead of the Pack...
lots of cards, but in different ways...
if you cant find them, then basil horwitz all the way my friend...he's an undiscovered genius..especially when you read volume 5 and see who he's influenced..
