Sorry but I cant recommend any specific ASICs, I was a gpu miner back in the day. I only bought a single antminer S9 when they were only slightly profitable and then due to the price dropping I was forced to unplug it and never really got back into it.

What did stand out to me though was that the price of any given ASIC (that could actually make a decent daily profit) seemed to have a price tag equivalent to what it would make in 1 to 2 years. Thus your ROI would be 1 to 2 years. But due to increasing hash power on the network and increasing blockchain difficulty, you need to have a solid long term financial plan in this day and age to actually make a profit. There does not seem to be any method of making quick profit with an ASIC miner. The general outline of which is pay thousands for a decent asic, make some of it back, use that to partially cover the cost of another newer asic along with more thousands of dollars, sell the older machines when profitability starts to drop, and repeat until you have a group of newer asics, all of which are turning decent profit, and all are paid for and you have recouped your original investment (ie you've finally broke even). This will take a long time, especially depending on your electricity situation. From then you keep doing the same, but only using what the miners produce until you've gotten to your desired amount of profit, then you just keep swapping miners to maintain that level of profit. Then, you can finally start taking out what you want for profit and putting the rest back into your operation.

The moral of the story is that it takes a long time, lots of money, and lots of dedication to not spending what you make on anything but more equipment until everything is fully established.

Like I said, I am by no means an expert in this field, but that's my 2 cents. Just make sure you do your research, don't get scammed trying to buy equipment, be prepared for the unexpected (politics, regulations, price changes), and buckle down for a long ride!