Hey Yall! my team (3654) is looking for new ideas to help improve our robot’s ball indexer and intake for the 2021 season! we are also looking for new ideas for both low and high goal shooter. what we currently use is a belt system that will carry the balls from our intake and then dump them into the low goal. if anyone has any ideas on how we could improve or add to this system they would be very much appreciated! thank you!
Some pictures of your current set-up would help a ton of you have any! 
This probably isn’t a super direct answer, but one thing that you could do is look at the reveal video’s of really good robot’s this year and see what types of things they did and how they did them. Another great place to look is the 2020 open build blogs, you will find excellent ideas and practices there you will just need to do some digging. Once you have found a great idea see if you can apply it to your robot. Maybe have a slo-mo video of your robot intaking and indexing and find the slow-points. You may find that your intake rollers/wheels are too close to the ground, or maybe the ball get’s caught on the bumpers so you need to add something there. Those are my 2 cents.
I thought Team Titanium (1986) had an incredibly impressive bot at #frcmokc
You can get a look at it here: https://youtu.be/L0IrdbzMmBg?t=26