You have to pay for safety. On a real basis, after tax, etc, "safe" assets generally lose to inflation(with rare occasional exceptions).

Roughly in order of safety:

• FDIC insured accounts (HYSA, CD's, etc)
• Treasuries(to include I/EE bonds, tips, etc)
• Money Market funds(MMF) (SIPC insured)
• MYGA's (SPIC insured)
• Bank Accounts not FDIC insured, i.e. you went over the FDIC limits.
• Stable Value Funds (SVF)
• Municipal Bonds (not guaranteed, but generally state income tax free)
• Short term bonds
• Medium term bonds
• Long term bonds
• Real Estate(un-leveraged, i.e. no mortgage)
• Preferred Stocks
• Annuities, not SPIC insured
• Leveraged Real Estate (i.e. mortgaged)
• Equities

FDIC insured accounts, MMF, generally lose to inflation.

Some treasuries should keep up with inflation at least(tips, iBonds, etc) but after taxes, you probably won't.

MYGA's are in the same boat, you might be able to beat inflation, but maybe only barely(and involve lots of insurance paperwork, apparently) and after taxes, doubtful.

Bonds can beat inflation, but there is zero guarantee and for the next decade almost certainly won't.

bonds except for the past 40-ish years have not even kept up with inflation. This is the rare occasional exception, alluded to earlier.

Real Estate will probably keep up with inflation, and if you treat it like a real business, you might even make some money.

Preferred stocks should beat inflation, but takes on considerably more risk than everything else above it, but after taxes you probably can make a little.

Equities should handily beat inflation, risk is obviously higher.

The safer the money, the less people are willing to pay you for it. There is no free lunch.

Bonds

In general, there are 3 good reasons to buy bonds:

1. Safety: lowering the volatility of stocks(and hence lowering your expected returns)

2. To pay for a future expense: in which case you buy a bond fund with the duration of that future expense.

3. The idea that bonds are negatively correlated to stocks, and you want the re-balance bonus during high volatility. This is currently true with Long Term Treasuries(LTT) but is not guaranteed to be true tomorrow or next year. There have been long periods of time in history where it wasn't true. There are academic thoughts on why it might be true sometimes, but last I checked nobody knows definitively what makes the correlation change.

If you aren't buying bonds for one of those reasons, then you probably don't want to buy bonds.

For reason 1, BND is great. For reason 2, BND might be great, if your timeframe is 4-10 years and for reason 3, no, BND is bad look for something like TLT or EDV.

TIPS

The US govt(and many other developed nations) have a bet that they have inflation under control, via TIPS, over8% of the US govt debt is in Inflation Protected Securities. They are willing to sell more. That is the full faith and credit of the US govt saying, Inflation WILL stay at 2-3% over the long term, and we are willing to stake our entire global reputation on it. Betting against the US govt in the past 100 years has been a bad idea. Will it be a bad idea in the next 100? probably.