Compare to the next fixtures between the teams who in the top 3 i think the most difficult schedule is belongs to Sevilla because on the next month they will fight against Barcelona and Madrid and on may against Atletico so it won't be easy for them especially for Barcelona that this team had ambition to finish on second place and if Sevilla lose once or more for the next matches then Barcelona will possibly taking over their position and finish on the second places
that means the top 4 teams in the current standings will also face each other. they are all strong, and there is no better chance than to win or draw. holding a draw in a match with an equally strong team I think is pretty good. and they have to win against the weaker team.
Barca may benefit more because they still have a gap of 1 game that has not been done. Barca is playing well, hopefully, they can play consistently.
if Barcelona manages to win over Sevilla then the 2nd position in the standings will be taken by Barcelona, it is very likely to happen considering that Sevilla's performance in the last few matches was very bad, even in the last 5 matches Sevilla only managed to win 1 game. In contrast to Barcelona's very good performance in the last few matches, especially since they just won the El Clasico last weekend, it will certainly increase their confidence.
this match will be played at Barcelona Camp Nou home stadium, I think Barcelona will be able to win it, I have no doubt for it even I prepared more money to bet on Barcelona win.
On the other hand, Real Madrid in my opinion is quite calm at the top of the table with a difference of 12 points and that does not include 1 game remaining for Barcelona, considering that this season there are only 9 games remaining. I think Real Madrid will be able to keep the top spot and win La Liga this season.