If you are just planning to buy BTC Miner then the newest model from Bitmain is more powerful but the problem is it's too expensive.
With your current budget, I think what you can only buy are 2nd hand s17 units but try to contact @offordscott he might be able to find you a better unit with your budget.
Here is the contact info:
https://offordscott.t.me/also he needs 240volts for any asic that is not modded the s17 needs 240 volts
the s19 needs 240 volts.
my thread has modded power and can use 120 volts.
if I use an s19 pro 100th th it is under 800 usd and around 33th that is $1.65 a day earnings at viabtc.
if he has 240 volts he can get an s17 cheaper set it to low and do 42th
here is a good seller for the s17
https://vmssecuritycloud.com/product/bitmain-antminer-s17-pro-53th/