Which funds can replace FLDBX?

Which mutual funds can replace FLDBX?

Which mutual funds can replace FLDBX? ranked by return similarity
Rank	Ticker	Fund	Return similarity
1	VLTCX	Vanguard Long-Term Corporate Bond Index Fund Admiral Shares	99.8%
2	DEEAX	Nomura Extended Duration Bond Fund Class A	99.7%
3	VWESX	Vanguard Long-Term Investment-Grade Fund Investor Shares	99.6%
4	SCCMX	Sterling Capital Long Duration Corporate Bond Class A Shares	99.4%
5	PLCPX	PIMCO Long-Term Credit Bond Fund Class I-2	99.2%
6	TLCDX	Transamerica Long Credit A	98.9%
7	VBLAX	Vanguard Long-Term Bond Index Fund Admiral Shares	97.9%
8	PLRAX	PIMCO Long Duration Total Return Fund Class A	96.8%
9	LMLCX	Western Asset SMASh Series C Fund	94.1%
10	PFGAX	PIMCO Long-Term U.S. Government Fund Class A	93.6%
11	DLLDX	DoubleLine Long Duration Total Return Bond Fund Class N	93.3%
12	VUSTX	Vanguard Long-Term Treasury Fund Investor Shares	93.2%
13	VLGSX	Vanguard Long-Term Treasury Index Fund Admiral Shares	93.2%
14	FTLTX	Fidelity Series Long-Term Treasury Bond Index Fund	93.2%
15	FNBGX	Fidelity Long-Term Treasury Bond Index Fund	93.1%
16	PRUUX	T. Rowe Price U.S. Treasury Long-Term Index Fund I Class	92.9%
17	RMHSX	Russell Investments Long Duration Bond Fund Class S	92.4%
18	FBLTX	Fidelity SAI Long-Term Treasury Bond Index Fund	91.5%
19	WTLGX	Wisdomtree Long-Term Treasury Digital Fund N/A	91.5%
20	PRAIX	PIMCO Long-Term Real Return Fund Institutional Class	91.4%