is there a 2024 turbotax version that let's me file separate returns for 2 other family members. I did that in 2023.

Yes if you buy the Desktop Download.  The Desktop program can do unlimited returns and efile 5 for free.  Then  each state is $25 to efile.   The Online versions are only good for 1 return per account.  

You can buy the current Desktop Download program here,
https://turbotax.intuit.com/personal-taxes/cd-download

When you use Online TurboTax, you get one return per fee.  Each return needs its own account and user ID.   If you use the same account and user ID for a second return, you overwrite the first one and lose it forever.

https://turbotax.intuit.com/personal-taxes/online/

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-online/00/25596

 When you use Desktop TurboTax, which you install from a CD or download to your own hard drive, you can prepare and e-file multiple returns for the cost of the software.  You can e-file up to 5 Federal returns—more if you mail the additional ones.  If you have multiple returns to prepare for family members, Desktop is more cost effective.

DOWNLOAD (This requires a full PC or Mac—-cannot be used on a mobile device)

https://turbotax.intuit.com/personal-taxes/cd-download/

You can also purchase the desktop download from various retailers such as Costco, Amazon, Walmart, Best Buy, Staples, Sam’s Club, etc. etc. etc.

This link Where can I obtain authentic TurboTax software? has a list of authorized TurboTax resellers.

When you use desktop software, there is an additional fee to e-file a state return.  You can avoid that fee if you print, sign and mail the state return. 

the desktop versions will allow e-filing of up to 5 federal 1040s for only the cost of the app and possibly a state e-filing fee (states may be mailed to avoid the fee)

https://turbotax.intuit.com/personal-taxes/cd-download/install-turbotax/