Illustrations for my landing page ?

ui8.net has a pretty nice collection!

A bit late on this one, but these illustrations are  🔥 https://blush.design/collections

Already mentioned resources have a nice variety of illustration work but, if you want to take a look at alternatives, I have recently opened an asset store. Feel free to check out illustrations there too - https://tomsdesign.store

Some sources here - https://www.indiehackers.com/article/15-sweet-websites-for-awesome-free-artwork-08046eb25c

I have listed some of my favorite places to get free illustrations here: https://www.indiehackers.com/post/7-places-to-get-free-illustrations-for-your-next-project-9e80eb440e

very good on Icons8 - i like it