I like Nodda's 688. It's in the Correlation Map twice as 688.
Maximum Correlation Map
11/23/2020,876,716 | 06/18/1996,231,939
11/24/2020,794,046 | 06/19/1996,137,722
11/25/2020,119,431 | 06/20/1996,696,745
11/26/2020,656,948 | 06/21/1996,716,818
11/27/2020,800,631 | 06/22/1996,836,485
11/28/2020,784,812 | 06/24/1996,339,526
11/29/2020,101,678 | 06/25/1996,690,160
11/30/2020,368,231 | 06/26/1996,405,000
12/01/2020,472,624 | 06/27/1996,089,763
12/02/2020,264,870 | 06/28/1996,991,794
12/03/2020,178,833 | 06/29/1996,588,276
12/04/2020,519,265 | 07/01/1996,992,432
12/05/2020,106,554 | 07/02/1996,164,645
12/06/2020,046,480 | 07/03/1996,240,270
12/07/2020,289,465 | 07/04/1996,996,568
12/08/2020,008,374 | 07/05/1996,737,925
12/09/2020,204,586 | 07/06/1996,046,346
12/10/2020,676,097 | 07/08/1996,716,109
12/11/2020,810,271 | 07/09/1996,666,343
12/12/2020,906,452 | 07/10/1996,293,688
12/13/2020,358,521 | 07/11/1996,078,106
12/14/2020,683,126 | 07/12/1996,358,771
12/15/2020,765,691 | 07/13/1996,213,994
12/16/2020,109,284 | 07/15/1996,376,943
12/17/2020,532,840 | 07/16/1996,981,999
12/18/2020,755,328 | 07/17/1996,688,962
12/19/2020,618,793 | 07/18/1996,982,709
12/20/2020,559,985 | 07/19/1996,743,098
12/21/2020,008,939 | 07/20/1996,151,159
12/22/2020,669,184 | 07/22/1996,358,691
12/23/2020,857,216 | 07/23/1996,409,434
Good Luck!