>>1746167
Hikari is fine at 3*, you don't need her higher.
If you got your shupos mixed then your best bet is going to twitter and searching up for someone with UE50 Nozomi accepting people. Alternatively, join the Rabbit Bunker discord server listed on the BA subreddit and ask for someone with a UE50 Nozomi.

Personally I usually just do twitter and it works but they may take a while to accept if they don't have autoaccept on.