TableStorage.Abstractions.POCO.SecondaryIndexes (nuget): Geared more toward Azure Table Storage (vs CosmosDB, which has an ATS api), using an intra/inter partition (or table) secondary index pattern.  This library handles keeping the indexes up to date as data gets mutated.
Keywords: table-storage|azure-table-storage|poco|table-entities|tableentity|index|secondary-index|repository|tablestorage