Cloverdale is the top of the county and the top of this list, and its public pickleball is about as small as public pickleball gets. What it lacks in courts it partly makes up in organization: the city runs its own classes and its own tournament, which is more than most towns this size manage.
That is worth saying plainly rather than talking around. Cloverdale's own instructor roster already lists certified pickleball coaches, so a beginner here has two good ways to start: a city group class, or a private lesson or the Beginner Bootcamp. The difference is the format rather than the level. A class puts you in a group on a set evening; a lesson is one to one and spends the whole hour on you.
The other thing that is true here and not elsewhere is heat. This is the hot end of Sonoma County, there is no indoor court in town, and from early summer to autumn the useful part of the day is the morning. Plan around that and Cloverdale is easy. Ignore it and you will spend a lesson standing in the sun learning nothing.