all of this is meaningless without knowing your credit history or even FICO score. we can recommend tons of primo cards but theres no point if you'll never get approved due to having a short or non-existent credit history.

if you're just starting out or dont have high dbl digit CLs, forget doing $100k spend in 3mo. its gonna be a huge red flag, and you'll back in the forums posting 'Chase/Citi shut me down or AMEX FRd me - what do I do now?' etc. if you dunno what any of what I just said means, thats a good clue for you to go start reading and searching. remember this is a marathon not a sprint.

if you have a legit business, and good personal credit history, try applying for business cards. specifically AMEX business charge cards who maybe more tolerant of 6 digit charges in a short amount of time.

if you dont have much of a credit history or business credit history -- well start building one before even dreaming about the primo cards. start by getting basic cards if you bank with a major FI. otherwise get some sort of credit/loan from your CU or try secured loans/CC. also in the meanwhile you'll want to read, read and read a LOT. no one ever got good at this game after a day on FT. for most ppl to grasp the basics it takes a solid 6mo of reading all the various forums and resources that interest you. reading and researching (google is your best friend) to find other places/communities where all the basic questions you have as a noob have been spelled out in detail and might even be frequently updated.

you'll want to have a grasp of things such as Citi's 8/65 personal and 95 for business cards rule. you'll want to familiarize yourself with Chase's 5/24 rule and how you should space out apps and prioritize UR earning cards. you wanna know abt BoA's 2 card rule and AMEXs rules. you'll want to learn abt how long to wait until denials, which banks are more/less risk averse, which banks can you push things with (spend, apps, juggling different things around)... there's so much to learn that NO ONE here can give you a concise one post solution to your situation.

there are lots of variables and nuances to the game. coming here simply saying I got $100k to spend, which card should I get is a bad way to approach this game. go learn the game first and see where you fit in. some ppl do $100k a yr, some do $100k a wk here. but if you're brand new to this world, figure out where you fit in before you jump so far down the rabbithole that you dunno how to climb back up.