Compile selectors for a .NET Core + Selenium crawler

For an Italian customer I'm building ( I'm an Italian Software Engineer) a Crawler based on my crawler framework where basically most of the times I just need to see an html source and CONFIGURE xpath selectors for a specific page.
Only rarely, when the page is not a flat html table or a simple page with cards, i need to write some custom code, custom algorithm using directly selenium and any kind of selectors.

An example of flat html page (just to configure with standard algorithms):
http://www.albopretorio.aslfrosinone.it:8080/aol/pubblicazione/pubblicazioneDocumentoElenco.action
An example of "clean" cards page (just to configure with standard algorithms):
http://albopretorio.regione.fvg.it/ap/AAS5

The "problem" is that I have approx 200 pages to crawl, so in order to speed up the process, I need someone that knows C# and Selenium.

It's important to note that, if the job is well-done, I'll have for sure maintenance and support because obviously pages can be changed and compatibility broken.

Please only people that can show me .NET Framework or .NET Core projects with Selenium.