A non npc pop up when u log in for the first time that day that gives u somthing like
A egg (with a baby mon)
Some money like 10k
Like 2 coins?
Some berries
A rare candy
This would encourage players to play daily and would be rewarding and not break the economy
As a early game player u dont have acess to bosses or the daily quest npc so u dont have any daily login reason and it would just be nice to get rewarded for playing over a lomg period of time