I know my ECs are fairly weak but I don’t have any practical way of improving them.
Grade: Junior
PSAT: 1460
Haven’t done sat or act yet
unw: 3.94
w: 4.69/5.0 (I’ve gotten two B+'s)
APs: Human Geography, Physics 1, Comp sci, calc BC, Chem, Bio, Apush, Spanish, Lang
5s on Human geo, physics and comp sci
I’m taking the rest in May
We don’t do class rank.
High school: Affluent, high-ranking public
Ethnicity: Mexican (first generation college)
Gender: Male
Socioeconomic: 70k for 5 people
ECs: NHS, tutoring, nationally ranked eSports Team Captain, JV chess captain, Substance abuse community service club member (hoping for eboard next year), other miscellaneous clubs
I have a job on the weekends
I have no research or national academic awards. Terrible, but its too late now 
Hi there, I think a great idea for you to improve your ECs is to do an internship over the summer that will tie together a couple of your interests. It doesn’t need to be something competitive, just see if a local charity or business in a field you are interested in either has an established program or would be willing to let you tag along for the summer. Internships also create great experiences to write about in essays. Before anyone can recommend colleges, can you tell us a little bit more about what you are interested in studying, any schools you have already toured or researched (and your opinion of), if you are looking for merit aid, and your location and how far you will be willing to travel from it? Any relevant information like that will help.
Don’t discount your weekend job. That is an excellent EC!