maybe bone miser over one of the other 'when you cycle' creatures

some ideas:
ominous seas - make 8/8 krackens after drawing 8 cards
Teferi's Tutelage - mill them
Into the Story - expensive but good late game draw?
Thirst for knowledge - excellent with alham/ageless insight, very good with  by itself
Wheels - whirlpool rider seems especially cool with blink effects
midnight clock
archivist of oghma

1/12
consider: credit voucher