It is possible to turn a miss into an automatic hit
There are at least two features which can turn misses into hits without any sort of rerolling of dice:
The Way of the Drunken Master Monk's Redirect Attack feature:
This turns a miss against you into a hit against somebody else.
The Rogue's Stroke of Luck feature:
[...] If your attack misses a target within range, you can turn the miss into a hit. [...]
Though these both require an initial attack roll they are rather exceptional in that the attack hits regardless of what the initial attack roll was.
Potentially you could combine these with automatic misses
The Land Druid's Nature's Sanctuary feature states:
[...] When a beast or plant creature attacks you, that creature must make a Wisdom saving throw against your druid spell save DC. On a failed save, the creature must choose a different target, or the attack automatically misses. [...]
Thus, theoretically a multiclass with 14 level in Land Druid and 6 level in Drunken Master Monk could turn an attack into an automatic miss and turn that miss into an automatic hit.
Unfortunately, the automatic miss probably technically still involves an attack roll, so this doesn't actually lead to a hit with no attack rolls involved.