https://www.theguardian.com/books/2017/mar/25/lenin-love-literature-russian-revolution-soviet-union-goethe
Seems relevant! The article mentions Belinskii’s letter to Gogol, among other topics we’ve covered. A piece that Lenin wrote on Tolstoy is also cited, which I found particularly interesting:
https://www.marxists.org/archive/lenin/works/1908/sep/11.htm