Most of daily bosses, which we can kill in Tibia is unfortunately too strong for your level and what is even more important: it is required to have higher level to finish the quest, for example Grand Master Oberon requires level 250.
I suggest to start with The Curse Spreads Quest, which according to Tibia.Fandom has no requirements about your level.
- Shadowpelt,
- Black Vixen,
- Sharpclaw,
- Darkfank,
- Bloodtusk.
You can also kill Kroazur even more often than once a day, because every 2h (Threatened Dreams Quest).
Unfortunately rest of bosses, even if much higher level is not required, you will probably kill a bit later, because even Urmahlullu The Weakened from Kilmaresh Quest may be too strong for now, or the way to the boss may be too dangerous.
As soon as your level will be enough to face them I suggest to do:
- Grand Master Oberon
- Scareltt Etzel
- Drume
- Urmahlullu THe Weakened
- Grave Danger Quest mini bosses + King Zelos
- Summer/Winter Court arena + final boss The Nightmare Beast
- The Feaster of Souls mini bosses + The Pale Worm as a final boss
- Leiden aka Ravennous Hunger (Cults of Tibia Quest)
- it is still worth to do mini bosses from The Forgotten Knowledge Quest
- Faceless Bane
- gold-token mini-bosses from Heart of Destruction Quest