Slominer -split up.
I don’t have one specific Rav. Partly because I haven’t yet found someone, but also partially because I think (and have been told by my Rabbanim) that one should ask sheilas to a Rav who is an expert in the particular area of halacha (I think Ubiquitin actually also mentioned this idea recently).
One particular example of that is L”H questions. I only ask those to Rabbanim who are known to be experts on answering L”H questions, since that is a topic that few people are qualified to answer sheilahs in.
When it comes to “community questions” (like questions about landlord issues), I usually try to ask a “Community Rav” who is widely accepted in the particular community.