Cheap budget
wild top - around 8m~13m, I saw wild bucket and wild detective hat
wild mid - around 18m for blinker and around 23m for awe/ewe
crit ring - around 1m
High budget
wild Valk - around 165m
kobold death loop - around 15m~30m, kinda rare
kobold Bris - around 330m(?)
Combo
Morrigane's Helm, Morrigane's Manteau, Morrigane's Belt & Morrigane's Pendant Equip Set - no idea the price but I think the combo is decent
STR + 2, LUK + 9, Critical Rate + 13, ATK + 18, Perfect Dodge + 13