Here's the potions I'd recommend for boss battles if you're using a melee character, plus other buffs like honey, heart lamp things, etc. I found these on the terraria wiki and put
How to Make Crafting Station in Terraria and Brew Potions - Read!
Love Potion - Terraria Wiki
Potions - Terraria Wiki
Potion - Official Terraria Wiki | Terrarium, Potions recipes, Crafting recipes
Category:Potion Materials | Terraria Wiki | Fandom
Spelunker Potion - Terraria Wiki
Life Fruit - Terraria Wiki
Potion - Official Terraria Wiki | Terrarium, Potions recipes, Crafting recipes
20 Tiny Cross Stitch Magic Potions Set Mini Cross Stitch RPG - Etsy Israel
SIMPLE AND EASY Potion Guide for Beginners! Complete Terraria 1.4 Potion Guide! - YouTube
Potion of Return - Official Terraria Wiki
tModLoader - Luiafk - Unlimited/Combinable Potions, Autobuilding stuff and more | Terraria Community Forums