suggestions for Windows 10 software please, , laptop to USB DAC, AIFF files, remote app

some people just feel like victims I guess......

and some people just add snarky comments to threads that add nothing worthwhile I guess

Thanks to those who offered constructive advice. I downloaded Jriver, will report back

I use JRiver and the free Gizmo app on my Android phone. Took me a minute or two to get the port forwarding to work. I did not see the need for spending money on the remote app. Plus Gizmo works well for my needs.

Hopefully you have spent some time assessing it as there is a lot of functionality with it and at times can be somewhat complicated without some research. The other day I was able to rename all my files, organize them in new folders all with one command.  

MediaMonkey is the best for me, grabs everything in your library, easy search functionality and easy to play whatever you are in the mood for.  And can output bit perfect by ASIO.
Never liked the JRiver interface.

Quite surprised Foobar 2000 is not mentioned...It is a bit more difficult to use than JRiver,  but it is free and the sound quality is equal or better to the others.... Once you learn the ins and outs of Foobar 2000, it is a quite effective library organizer and player.

By the way,  I have used JRiver and Media Monkey and prefer Foobar... I have also heard of Music Bee,  but have never tried it. Also,  the is mention of Fidelizer and JPlay above,  these are both systems to optimize your playback. I have used them both within Foobar without issue.