Best finish for old barnwood table

I made a coffee table for our living room with some old reclaimed barnwood I got from a coworker. One of the characteristics I like most about the wood is the texture, but the grooves in the old wood also lead to a lot of crap getting stuck in them with no good way to clean it. The finish I currently have on there is a dark stain with shellac and I think I need to use a thicker finish to possibly fill up the grooves but keep the appearance of the texture. I’m thinking I should sand it down, re-stain and put a few coats of poly and maybe some wax? Thoughts?