Grammar
Video playlist in English to learn Italian grammar
https://www.youtube.com/watch?v=QcXRqydXkxc&list=PLN0IM_1Z58Hpmr8dqds_u1Si-15XzWttd
Grammar exercises divided by topic
http://www.impariamoitaliano.com/
https://onlineitalianclub.com/index-of-free-italian-exercises-and-grammar-lessons/
http://studiareitaliano.it/wp-content/uploads/2020/11/Esercizi-di-Italiano-AILA.pdf
More than 600 conjugated verbs
https://onlineitalianclub.com/free-italian-exercises-and-resources/italian-verb-conjugator/