According to the Bhavishyottara Purana, Lord Shiva tells his wife Parvati how Valmiki got a boon from Hanuman to sing the glory of Rama in vernacular language (i.e. Ramcharitmanas) to incarnate in future in the Kali Yuga as Sage Tulsidas:
वाल्मीकिस्तुलसीदासः कलौ देवि भविष्यति ।
रामचन्द्रकथामेतां भाषाबद्धां करिष्यति ॥ (Bhavishyottara Purana, Pratisarga Parva, 4.20.)
Transliteration: vālmīkistulasīdāsaḥ kalau devi bhaviṣyati । rāmacandrakathāmetāṃ bhāṣābaddhāṃ kariṣyati ॥
Translation: O Goddess [Parvati]! Valmiki will become Tulsidas in the Kali age, and will compose this narrative of Rama in the vernacular language. (Bhavishyottara Purana, Pratisarga Parva, 4.20.)
Are there any other Puranas that talk about Sage Tulsidas apart from the Bhavishyottara Purana?