i bought these Antfire Bike Tail Light with Turn Signals on amazon for like $57. they've been working great for me so far. 2 lights in the front and 2 in the back. you can control the turn signals with a little controller you can attach to your handlebars. each light is rechargeable
https://www.amazon.com/dp/B09BQMKNF4?psc=1&ref=ppx\_yo2ov\_dt\_b\_product\_details