I've been leaning that direction but just know so little about them. I definitely want to find an 18th century Large Cent for that slot. I'm definitely not going to upgrade my Braided Hair cent anytime soon. Aside from being part of my grandmother's collection that started it all for me, the undersized hole in the Intercept was a total epic to make fit. Same with the Reeded Edge Half. Almost ruined the page and the coin making it fit...
I'd fill in some row gaps - the 3c, half dimes, nickels and dimes, so the denominations/rows are complete. Just because then I'd have a full row, a full page, then another full row. OCD.
When completing my type set, the strategy was to have a fairly broad search and be open to anything that fit. I found that if I focused in on only one or two items, it was easier to overpay or not find something that fit. Having multiple searches, meant that I could have more opportunities to find a coin. This might not work for all and your budget is obviously something to consider (if you have saved some extra funds, consider looking for one of the harder coins; on the other hand, if you have a smaller budget, then try to fill one of the easier spots). Regardless of what path you take, you have made great progress so far! Congrats and enjoy the journey!
You have quite a few holes to fill, and regardless of grade, some of those will be fillable at low to moderate cost and some will take a sizeable investment. When you have a lot to target, you can afford to search/shop for targets of opportunity. When I started on my type set, I basically decided the grade I wanted for specific types which translated roughly to the cost I was willing to pay for that coin. This allowed me to essentially say that I needed to keep cash available at all times for the most expensive coin on my list. That way, whenever I saw a coin that met my criteria for that coin, I could pursue an acquisition without regard to the question "Do I have the money for this?" If I found a nice example of a lower-priced coin, I could pick that up and then bring the "type coin fund" back up to the proper funding level.
