How low is your budget? I started my own pico tank not long ago and the great thing about picos is that they are cheapppppp. Buyinh the tank and upgrading the light to be coral ready would probaby be around 250$. If your a DIY kinda person then it should be even cheaper!
Jbj 3gallon is pretty good or even the new fluval tanks that are all in one plug and play.
Ya I want to get a tank for as cheap as possible, fit it with a hob filter if needed, and then just like one led bulb. Make it a basic softie tank. I don't really want to spend over $150 total. I also have like 5 boxes of dry rock that just need to get washed.