You can find squared papers for kanji here: https://chokochoko.wordpress.com/download/ And I recommend "happylilac" for worksheets of characters: http://happylilac.net/sy-kanzi1h.html

As my friend puts it, if you're bold enough, there are books not for foreigners but native Japanese elementary school children. If you have access to Japanese books, you could order a dictionary that shows all of the characters taught in primary school or you could order grade by grade. But for the time being, you could also refer to https://en.wikipedia.org/wiki/Ky%C5%8Diku_kanji that lists kanji by grade levels (1st grade to 6th grade). If you want something for non-natives/foreigners, I recommend "Remembering the Kanji" series by Richard Heisig.