Which funds can replace BGSXX?

Which mutual funds can replace BGSXX?

Which mutual funds can replace BGSXX? ranked by return similarity
Rank	Ticker	Fund	Return similarity
1	BNGXX	Northern Institutional U.S. Government Portfolio	100.0%
2	NITXX	Northern Institutional Treasury Portfolio	99.7%
3	NOGXX	Northern U.S. Government Money Market Fund	98.8%
4	NOSXX	Northern U.S. Government Select Money Market Fund	97.1%
5	FDRXX	Fidelity Government Cash Reserves	96.6%
6	IDSXX	Columbia Government Money Market Fund Class A	96.3%
7	FLGXX	Fidelity Flex Government Money Market Fund	96.3%
8	JHMXX	John Hancock Money Market Fund Class A	96.2%
9	AFAXX	American Funds U.S. Government Money Market Fund Class A	96.1%
10	FCIXX	Fidelity Investments Money Market - Money Market Portfolio - Class II	96.0%
11	FNBXX	Fidelity Government Money Market Fund - Class K6	95.8%
12	FCGXX	Fidelity Investments Money Market Government Portfolio - Class III	95.8%
13	FOIXX	Fidelity Investments Money Market Treasury Only Portfolio - Class III	95.7%
14	FDLXX	Fidelity Treasury Only Money Market Fund	95.7%
15	PGWXX	Principal Government Money Market Fund Class R-6	95.7%
16	FCEXX	Fidelity Investments Money Market Treasury Portfolio - Class II	95.6%
17	FGNXX	Fidelity Series Government Money Market Fund	95.6%
18	FZDXX	Fidelity Money Market Fund - Premium Class	95.6%
19	TRGXX	T. Rowe Price U.S. Treasury Money Fund I Class	95.4%
20	TTGXX	T. Rowe Price Government Money Fund I Class	95.3%