Some of the accounts you can simply forget about them with their low balances.

There is NO effective way to transfer miles. The low balances also preventing you to do some creative award redemption. Though your AA account balance would let you redeem a one-way award but your UA account balance is too low so you cannot structure a r/t ticket with AA redemption on one direction and UA redemption on the other direction (can only be done on UA Metal though).

You need to figure out where you normally fly, and where you want to go in the future, then decide which airline(s) suit your needs the best, and concentrate your earning on that airline(s) program(s).

While your DL account has the highest balance, you need to realize that miles are not created equal - for 40K DL miles you would be lucky to get a domestic r/t which other airlines can easily get with 25K miles. You probably want to redeem all your DL miles and be done with the program.

There is a several pages long, ongoing thread in this forum and the almost unanimous conclusion is DL is the airline that is the most stingy in making award seat available.

AA, UA, US and even CO, would be candidates for you to do more research regarding which program to concentrate on based on your own needs. Since UA, US & CO are all members of Star Alliance, you should pick one based on your travel pattern instead of stretching yourself because based on the account balances I dont see you have the ability to maintain 3 programs in a meaningful way.

Hawaii Airlines - check if they still offer transfer to HHonor points eventhough Hilton has drastically devalued its program, I assume the 1:2 ratio remains and 30K HHonor points may still get you a free night somewhere.