@Batool Haider start with the simple question "What can I afford?" If you're putting 10% down on a property, take your budget and divide it by14% to get an idea of what purchase price you can afford. So if you have $50k saved up for an STR, your max purchase price is $357k.
This is assuming you're buying a house fully furnished. If that's not the case, take $10-20k out of your budget for furnishings and renovations and then do the math above.
From there it sounds like you're ok with investing out-of-state, so just google "best places to invest in short-term rental" and see what comes up. It didn't take long to find this, this, and this.
Now comes the fun part. You need to cross-reference these lists with places you can actually afford. it doesn't matter if Arvada has great investment potential if you can't afford it. Once you find the market you can afford, look for a gross yield (potential revenue/purchase price) of at least 15%. You can use sites like Airdna and Rabbu to find revenue numbers, but make sure to actually look into comps on airbnb to see why/how properties are achieving those numbers.
Good luck with your first STR acquisition! I'm about to close on my fourth so if there's any further advice I can provide feel free to DM me.