Types and links:
Whether:
https://www.englishpedia.net/my-grammar/advanced/if-clauses/whether-or-not-conditionals.html
I wish / If only:
https://www.youtube.com/watch?v=8EWINVP3B9A
https://www.youtube.com/watch?v=j6nugxXGPqY
http://www.myenglishpages.com/site_php_files/grammar-lesson-if-only.php#.UtwoRoz2GK0
Inversion in conditionals (with activity):
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-89063.php
ACTIVITIES:
Advanced conditionals:
http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/cat-and-mouse
http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/cat-and-mouse?02
http://www.ego4u.com/en/read-on/countries/usa/tour/new-orleans
Different links:
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-10629.php
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-59032.php
https://test-english.com/grammar-points/b2/unless-even-if-provided-as-long-conditionals/
https://englishworksheets.net/practice/e-unless-as-long-as.html
https://www.autoenglish.org/generalgrammar/UnlessExercise.htm
https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-116478.php
https://www.englishgrammar.org/if-unless-providing-as-long-as/
Exceptions:
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-90678.php
http://www.englishpage.com/conditional/conditional10.htm
http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/exceptions/exercises?04
http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/exceptions/exercises?05
http://www.ego4u.com/en/cram-up/tests/conditional-sentences-4
I wish/If only:
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-5529.php
http://www.englishexercises.org/makeagame/viewgame.asp?id=5841
http://www.myenglishpages.com/site_php_files/grammar-exercise-if-only-I-wish.php