Is it better to roll my old company’s 401k into my personal Roth, or new company’s 401 plan?

I was only there a couple years and I have a little over 30k in the account.

I like the option of vanguard funds in my personal Roth, but understand that I’ll pay taxes on the rollover as I’m taking pre tax dollars and putting it into a post tax fund.

I don’t qualify for my newer company’s 401k plan for about another 6-8 weeks. I could roll it into my Roth now.

I just don’t know what’s smarter. My new company plan only offers targeted date funds with diversification in American stocks and bonds.

All advice appreciated. Thanks