Hanuman Chalisa is hindi poem written by Mahakavi Goswami Tulsidas in the sixteenth century in praise of Lord Hanuman. It is very popular among a lot of modern hindus and is generally recited on Tuesdays (considered a holy day for devotees of Lord Hanuman).
Bhagvad Gita is an authoritative scripture of Vedic culture. Gita essentially is a part of the famous Hindu epic, Mahabharata, and consists of 700 verses (shlokas) compiled together in 18 chapters.
Ganesh Chalisa is a popular chalisa (long prayer/ hymn) sung in the praise and devotion of Lord Ganesha, esp. during the inauguration or start of something new.
Ramayana is an epic written by Valmiki about Rama's life. It is an ancient Sanskrit epic of India, held in great reverence by the Hindus for its exploration of human existence on earth as well as for its literary value.
Satyanarayan Aarti is sung in praise of Lord Vishnu to seek blessings from him. Satyanarayan pooja is really important when you are tring to seek something significant milestone in our life such as success in business, education, buying a new home etc.