See the Bogleheads Wiki page on Fidelity. In Roth, for all stocks:
Total US Stock Market Indexes:
*
FSKAX - Fidelity Total Stock Market Index (ER 0.015%) - Equivalent to VTSAX
*
FZROX - Fidelity ZERO Total Market Index Fund (ER 0%) - do NOT use this in taxable. (*)
Total International Index:
*
FTIHX - FidelityŽ Total International Index Fund (ER 0.06%) - Equivalent to VTIAX
*
FZILX - Fidelity ZERO International Index Fund (ER 0%) - do NOT use this in taxable. (*)
ETF:
*
VTI - Vanguard Total Stock Market ETF (ER 0.03%)
*
SCHB - Schwab Total Stock Market ETF (ER 0.03%)
*
VXUS - Vanguard Total International ETF (ER 0.08%)
For bonds,
FXNAX - Fidelity U.S. Bond Index Fund (ER 0.025%) - Equivalent to VBTLX.
(*) The Fidelity ZERO index funds are very good, although recent (2018), but they are not portable (tracking a proprietary index), so if bought in taxable, you can't ever leave Fidelity without selling them and incurring capital gains taxes. Not a good idea. Performance-wise,
FZROX has been almost indistinguishable from FSKAXI use FSKAX/FTIHX/FXNAX in my 401(k), FSKAX in my Roth IRA and FZROX/FZILX/FXNAX in my HSA (that was an experiment when they came out).