My current mix set up Tascam Dm-24 and a Motu Mkii is aging. What would you folks recommend as a replacement? Need minimum of 16channels and a board that will remember mix settings.

Focusrite Scarlett 18i20 Gen 2 with any Focusrite  ADAT Octapre. Berhinger X Touch

im looking more for studio mixer recommendations

Go to the hardware forum. There are at least 2 threads talking about this topic. 
And one of the best sites for researching info is Sweetwater. Use it's filters to list what your shopping for to compare major brands and then read the reviews. Asking opinions on what is best here will net you a very narrow spectrum of overviews. 

Obviously since nobody replied. Probably more of a ghost town in the hw forum.

The Top 10 Best Audio Mixers In The World Right Now
https://www.pmtonline.co....n-the-world-right-now/

Soundcraft MTK 22. Rock solid drivers, can be used live also.

Jerry

Well, small steps. I found a Tascam Dm3200 with all the bells and whistles for cheap.

For mixer based recording solutions, the only ones I would personally consider are:
 
The Tascam Model 24: https://www.sweetwater.com/store/detail/Model24--tascam-model-24-mixer-interface-recorder
The Yamaha 01v96i: https://www.sweetwater.com/store/detail/01V96i--yamaha-01v96i-40-channel-digital-mixer
The Presonus StudioLive series 3: https://www.sweetwater.com/store/detail/SLMAD24--presonus-studiolive-24-series-iii-digital-mixer
 
...only because they expose all their inputs as separate channels via USB.
 
Most mixer based solutions only have a stereo output via USB.
 
Whereas these:
 
Tascam 24: 24 Inputs / 22 Outputs via USB
Yamaha 01v96i: 16 inputs / 16 outputs via USB
Presonus StudioLive 24: 38 inputs / 38 outputs via USB

msmcleod
For mixer based recording solutions, the only ones I would personally consider are:
 
The Tascam Model 24: https://www.sweetwater.com/store/detail/Model24--tascam-model-24-mixer-interface-recorder
The Yamaha 01v96i: https://www.sweetwater.com/store/detail/01V96i--yamaha-01v96i-40-channel-digital-mixer
The Presonus StudioLive series 3: [link=https://www.sweetwater.com/store/detail/SLMAD24--presonus-studiolive-24-series-iii-digital-mixer]https://www.sweetwater.com/store/detail/SLMAD24--presonus-studiolive-24-series-iii-digital

You have lots of hours on all or just posting reviews? I agree on the Yamaha. Sceptical on the 24 and the presonus