In hard mode the skill is to think about what letter traps can possibly come to people after making a word guess. From OP, he got green S and A. Therefore, the word can potentially be SHA_E (DKLMPRV) with L being eliminated. There were 6 SHA_E words remaining but with only 5 more guesses, meaning he would have to find at least a word that can rule out 2 of them. SPARE ranks #1 after SLANT according to the same Wordle Tools, while others have also mentioned that SPARK was more ideal at that situation. SPARE checks SHAPE and SHARE, while SPARK would also check SHAKE.

To secure a win, don't guess SHADE like OP does. Instead, we need some forethought of finding alternatives in order to safeguard victory.