The Family Acceptance Project has resources for family and friends of LGBTQ youth at: http://familyproject.sfsu.edu/publications
Gender Spectrum provides information and support for parents and families and an annual conference for families with gender-variant and transgender children. See their website at www.genderspectrum.org
In addition, PFLAG (Parents, Families, & Friends of Lesbians & Gays) is a non-profit support network for families, friends, allies, and LGBTQ+ persons. See the PFLAG website at: https://pflag.org/chapter/pflag-tri-valley .
Please see more resources below.