Hey man, we’re here to help. Forte is a great purchase if it fits your budget and you want to do it correctly from the start without messing around (I assume you are talking Forte BG with steel burrs). It’s a brick shithouse built by a great company with great customer service and is used by a number of coffee professionals.
You have a Porsche-class grinder, so you should probably buy coffees that can realize its potential. In general, people tend to refer to this as specialty coffee with a specific focus on LRSOs (light roast single origins, but in practice medium roasts are in play too). There are two components here: (1) roast level and (2) origin. However, I’m also going to talk about a third component you should pay attention to which is (3) processing type. This is gonna be the CLIFFS version that gets right to the point.
(1) Roast level. This is personal preference of course, but the “problem” with dark roast coffees is that most / all of the interesting sugars and acids are eliminated by the high temperatures. In the lighter roasts, more of the unique flavor compounds are retained which can create interesting profiles. Note: acids are important, and they can be overwhelming to people who are only used to Starbucks-quality dark roast coffees. I would recommend buying both a light and medium roast as a starting point. The general rule of thumb to remember is the lighter the roast, the higher the acidity.
(2) There are blends and single origins. Assuming we are talking about coffees from a good roaster, blends tend to be slightly cheaper and slightly lower quality than a well-sourced single origin lot. I personally only buy single origins, but you can’t go wrong either way if the roaster is good.
(3) When you buy specialty coffee, you’ll start to notice words like natural, washed, honey, and anaerobic. These refer to the way that the coffee is processed. The biggest difference seems to be between natural and washed coffees. Some hate them, I love them.
*My advice is to keep track of the coffees you’ve brewed in a spreadsheet noting the roaster, country of origin, processing type, tasting notes, and your rating/impressions to see if any patterns emerge. It’s literally a matter of taste as we all taste things differently due to anatomy, receptors, etc. Eventually, you and your partner’s preferences will likely become apparent if you’re tracking.
Regarding the V60, it’s considered the industry standard for pour-over coffee. I was watching a Prima Coffee review of a $3,000 single cup brewing machine and the dude was like “yeah this is really nice, but it can’t make a cup as good as a V60.” Tells you everything you need to know really, and while the V60 can be a bit of a mystery at times, I feel like most of that frustration disappeared when I upgraded to a better grinder.