Building a new system…looking for thoughtful recommendations

Long time lurker here… I’ve been listening to equipment for some time at various shops in my area.  I’m sold on a set of Magnepan 3.7i’s  and I have ordered a Bryston 4B3 to punch up the bass. (I do love classic and hard rock, Radiohead, etc).  I already own a modest turntable (project 2xperience with a Sumiko blue #2 MC) My fiancé tends towards newer and EDC music so I’d like to get a nice DAC with a phono stage built in.  My issue of course is that I’d prefer to get a tube pre-DAC but I’m concerned with matching up with the Bryston and it’s low input Ohms.  BTW Listening room is 30x20 with 9 foot ceilings. Budget..7K or so, hopefully I’ve answered most of the questions the noobs seem to get chastised for around here. Love the banter here btw. This new world doesn’t have enough of it anymore.