Lv 31-36: Skullsatamon (Oils 1)
Lv 36-41: Vikaralamon (Oils 3)
Lv 41-60: Dark Bakemon (Dark Tower) or Dark wormmon if not strong enough for bakemon
Lv 61-65: Dark Veemon/Skull greymon (Dark Tower)
Lv 31-36: Weregarurumon (Oils 1)
Lv 36-43: Vikaralamon (Oils 3)
Lv 47-53: Dark skullmeramon (DT)
Lv 53-65: Dark Veemon (Dark Tower)
Lv 31-35: Icemon (Snow Village), Dorugamon (Oils 1)
Lv 35-43: Saberleomon (Oils 3)
Lv 43-50: Darkskullmeramon (Dark Tower)
Lv 50-60: Darkbakemon (Dark Tower)
Lv 60-63: Darkskullgreymon (DT)
Based on making money and levelling speed:
Vaccine > Virus > Data
Vaccine is the easiest to level with bot because you can just put it at bakemon since lv 41 and bakemon doesn't drop attribute so you can just leave it there for 12 hours and you will get 6+ stacked eggs and bakemon merc egg which you scan for digicores. Later, you can place it at darkveemon for further levelling. Virus is second because you can put it at darkskullmeramon since 41 and put it at Dark skullgreymon later. Data is the hardest because you can only place it at DT after lvl 45+.
Tips for botting:
- botting at Dark tower only requires red bean bread which costs nothing and will give you a lot of bits from cracked eggs.
- botting at Dark tower is not as risky as botting at other places because there's no aggro
- in terms of profitability for botting at DT: Bakemon > Dark skullmeramon = Dark skullgreymon > Dark veemon > Dark wormmon. Bakemon is the only that doesn't drop attribute so you can leave your bot there for a long time. Veemon will give you a lot of bits from dragon chips but it's usually very crowded so you will get less monsters.
hope my guide helps
credit : megamendung