We can conclude that only Real Madrid and Sevilla compete for the title. Atletico Madrid and Barcelona are clearly out of the title race this season since their point gaps are too far from Real Madrid or Sevilla points.
If we look at the points so far, it is true that only those two clubs have the potential to beat each other in standings. The points are close enough, only 5 in the gap (Sevilla still has 1 match again). Both Real Madrid and Sevilla have the chance to be the top standing.
Real Betis, although this is in the third position, they still have a high gap on the points, but if they will not lose any match and collect the points, he may also have the chance, but a little bit low than the two both above.
If we are talking about Atletico Madrid and Barcelona, well, they seem they are enough at the position. Moreover Barcelona, not underestimating, but this club is still struggling not only in the match but also struggling in their management and performance itself. Many lines still should be well managed again.