Proper verb to denote 'consistent-ize'
You can use > standardise
standardize [/ standardise]
verb [(1) used with object]
to bring to or make of an established standard size, weight, quality, strength, or the like:
- to standardize manufactured parts.
[Dictionary.com]
Normalize
Bring or return to a normal or standard condition or state.
[Lexico]
Another one for the bin:
Homogenize
- to make uniform or similar, as in composition or function: to homogenize school systems.
Harmonize means this in some cases where regulate or reconcile do not.
Regulate.
Control or supervise (something, esp. a company or business activity) by means of rules and regulations.
Reconcile:
to make consistent
As defined by Merriam-Webster.