Any suggestions for a first from these

Been riding BMX for a while now and have ridden a friend's dj before (which shreds trails and the skate park) so I talked with one of my dad's friend (who is sponsored by specialized & fox i think) and told him what I wanted to do( mainly park and trail courses but also a functional bike for light trails sometimes) and recommend a hardtail. I only know pros and cons for BMX companies like eclat, federal, fit etc. so I know nothing about these brands other than "they are all good". Some input would be helpful 👍