Advise on selecting NAS

[Enquiries]

Hi,
My requirements : 2 HDD Bay and 2 NVME SSD Bay
Total Memory : 20 to 25 TB (15 TB via HDD and 8 TB via SSD)
Purpose:
1. Plex Media server (Having around 1000 Movies overall, 10000 FLAC songs, Picture management)
2. Personal Cloud.
3. If possible Security Camera connectivity.

I've narrow down on the below 3 NAS and having dilemma in selecting one.

1. UGREEN NASync DXP2800
2. Asustor AS5402T Nimbustor 2 AS5402T
3 .TerraMaster F2-423

Budget: 300 to 400 $

Please guide me in choosing the better options.