The 2020 Republican Party Presidential Primaries Wikipedia page only has two declared candidates, yet the Federal Elections Commission, as July 4, has a total of 780 candidates whom seek the Presidency, of which 105 are Republican candidates contesting to be the party's nominee.
As of May 1st those numbers include me.
Only eleven states have precise 2020 primary filing information: Alabama, Connecticut, Idaho, Louisiana, Massachusetts, Maryland, Michigan, Missouri, Oklahoma, Vermont, and West Virginia. BRAVO!
All others have some work to do!
Another great resource on election information is Ballotpedia.