There are plenty of cards beyond these that will serve you well if youre drafting, and can be used in a few Commander decks too, but these ones are generally more useful across the board

Benefactors Draught Untap all creatures Until end of turn, whenever a creature an opponent controls blocks, draw a card Draw a card Momentous Fall As an additional cost to cast this spell, sacrifice a creature You draw cards equal to the sacrificed creatures power, then you gain life equal to its toughness Return of the Wildspeaker Choose one Draw cards equal to the greatest power among non-Human creatures you control Non-Human creatures you control get +3/+3 until end of turn Veil of Summer Draw a card if an opponent has cast a blue or black spell this turn Spells you control cant be countered this turn You and permanents you control gain hexproof from blue and from black until end of turn Budget In regards to budget green card draw spells at instant speed, there are tons of cards that cost 2 mana that will give a creature some sort of boost while also drawing you a card
In a deck like mine, an Azlask deck, making your Spawns beefier is never a bad thing
In Standard, it plays an important role as a threat in midrange decks
In such decks the Whale is the more desirable sort of card