$150K in Individual Brokerage, $14K in additional income and $6K additional in new ROTH IRA

Hi all,

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I've been reading the Intelligent Investor by Graham and I've recently opened my eyes to small exposure to bond investing.

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I know rate hikes have increased recently which means long-term maturity bonds might not be the best bet, but for the sake of diversity, I'm considering investing in some bond etfs.

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Currently my account is as follows.

1. 150,000 in SPY in individual brokerage account
2. 20,000 in bank account ready to invest, with 6500 ready to put in ROTH IRA and 13500 to add on to my individual brokerage account.

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So here is my question:

1. Given that Bond etf dividends are tax qualified, would it be better to invest in bond etfs in my ROTH IRA so I don't pay taxes on dividends? Then I can put the remaining amount of money in my non-tax advantaged account and keep buying SPY
2. Would it be better to just buy SPY & SCHD on my ROTH IRA, and rather have my small exposure of bonds to my non-tax advantaged account?

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Any help is deeply appreciated?