Roll it over to an IRA, in general 401k plans have horrible small set of funds to choose from with higher fees, unless….
The fee’s in your 401k are lower than elsewhere (what you say? How is that possible? Well I work for the US Government. We have something called the TSP that has ridiculously (0.03%) low fees that match several major index funds. You lose a few choices but those low fees play out big over the year).
Or there is some weird rules surrounding your 401k. Always read the paperwork.