Tables with more than 5 indexes

This query returns over index table list

DECLARE @threshold INT;
SET @threshold = 5;
SELECT 
   [Table] = s.[Name] + N'.' + t.[Name] 
FROM [sys].tables t
   INNER JOIN [sys].schemas s ON t.[schema_id] = s.[schema_id]
WHERE EXISTS
(
   SELECT 1 FROM [sys].indexes i
   WHERE i.[object_id] = t.[object_id]
   GROUP BY i.[object_id]
   HAVING COUNT(*) > @threshold
);

Other Refrences:

Find TOP 50 unused indexes in a database

Find require index on tables

Tables without a Clustered Index (Heap)