New player finally managed to save up enough to buy any champion. Who do y'all suggest?

Exactly what is says in the title. Best champs? Champs to avoid? I don't mind a learning curve.

Honestly right now I'm looking at Kindred pretty hard. I know they're off meta but I love their design so much I'm still tempted. They too bad? Should I go for the real bullshit like Yasuo?

edit A bit of history about the champs I've liked:

Vi was my absolute fav for a long time, I actually bought her before my first match because I liked her kit and design so much. Quinn also just really clicked, she's my go-to toplaner. I've done well with Lux mid and now I'm messing around with tf.

So far the only really parallels I've been able to draw are high-mobility, high damage characters that have outplay potential but not too much of a skill floor. That's part of the reason I've been looking at kindred (aside from the fantastic design). They're got decent mobility and damage with potential for flashy plays.

As for learning curves, I've got some mechanics down well and am still learning others. I actually have a ton of experience with other mobas, so most of the mechanics that I'm still getting down are ones specific to league (specific positioning and objective play, etc.)

I've mostly been looking at the highest price tier with the most complex champs, since interesting mechanics are one of the things that brought me to league in the first place. I've had a lot of fun playing champs like Illaoi and Azir (may he rest in peace) who play around placeable psuedo-units and whatnot.