Some cards enchant a creature and add a +1/+1 counter, so these are a good starting point
Halo Fountain Halo Fountain is a 3-mana artifact from Streets of New Capenna that creates tokens, draws cards, and even offers an alternative win condition
Jaws of Defeat is an excellent damage-dealing enchantment, almost like a reverse Warstorm Surge
Purph is really nice late game reach - he makes your cheap early plays still relevant draws, not just because of that two damage, but because going at all wide with a global pump effect in play is yet more damage
Artimana doubles down on its customer service, which comes to aid if the ordered sleeves havent arrived in pristine condition
And last is From the CatacombsFrom the Catacombs, a spell you can keep casting with its Escape cost to pull creatures out of graves