Reaching lvl 30 soon, but I need WaniKani advice on how to move forward

If you’re willing to use scripts, check out [Userscript] WaniKani Lesson Filter. Using this, I always did all radical lessons on day 1 of a new level, plus 3 kanji and 9 vocab lessons every day. For me this created a nice balance and removed the tedium of doing the same type of lessons all in a row, while still ensuring that I completed all lessons. With this approach I leveled up in around 14-16 days on average. You could tweak the numbers to level up faster or slower, but make sure you do 2-3 times as many vocab as kanji every day so you don’t get behind on vocab.