I spent a few hours looking at 1001 Five-Seven Case Hardened patterns and hopefully filtered out some worthy ones. Below you will find multiple lists of pattern seeds.

Case-hardened patterns are mostly subjective, so I ask you to not get upset about it. What one person says about a pattern may not be the same what you think
I am not a skin expert. Do not use this guide to snipe skins unless you trust a random person.
This is all just my opinion. Feel free to suggest patterns.

(Ranked by Personal Preference)

• 278
  
• 690
  
• 868
  
• 363
  
• 532
  
• 631
  
• 321
  
• 670
  
• 648
  
• 689
  
• 724
  
• 770
  
• 768
  
• 872
  
• 177

(Not Ranked)

• 13
  
• 28
  
• 103
  
• 126
  
• 828 (added on 14.05.2023, pattern suggested by)
  
• 312
  
• 344
  
• 381
  
• 387
  
• 426
  
• 428
  
• 430
  
• 434
  
• 555
  
• 661
  
• 823
  
• 905
  
• 844
  
• 969
  
• 961 (added on 25.05.2023, pattern suggested by)
  
• 369 (added on 25.05.2023, pattern suggested by)

(Ranked by Personal Preference)

• 621 (added on 14.03.2023, pattern suggested by)
  
• 929
  
• 784 (added on 18.06.2023, pattern suggested by)
  
• 691
  
• 192
  
• 308
  
• 384
  
• 201
  
• 972 (added on 26.06.2024, pattern suggested by)
  
• 301
  
• 156
  
• 790
  
• 544
  
• 440
  
• 726
  
• 451
  
• 356
  
• 33

Other patterns I found pretty interesting:
50/50 pattern
632

749

Discord pattern (added on 03.08.2024, pattern found on Reddit)
362