As a College Park Airport resident (9274Y), I would recommend Tipton (Fort Meade) as best bet. Freeway has a treacherous little runway (big hump in the middle, like Hyde), narrow, bit rough and primitive facilities, too close to TFR and too hard to reach your destination near CGS. Suburban is also a bit primitive for transient purposes. Tipton is an old Army base, easy to get to off the BW Parkway (nearly straight shot to CGS), has a decent runway and there’s plenty of paved parking.
CAUTION: All these airports of very close to the TFR. While you can technically arrive at them without ATC, I strongly recommend flight following from at least 5-10 miles outside the TFR (GAI is a good point to pick up ATC on north side, eastern shore of Chesapeake on East side) or an IFR plan. Pick up Washington approach on 125.65 or 124.2 (they can hand you to Baltimore or Andrews if necessary) . Monitor 121.5 on second com at all times (that will be the freq if you are intercepted) and review the intercept rules on AOPA website (what to do and what signals to use if you see an F-15). The TSA (Transportation Security Administration) recently sent an F-15 after a student who was soloing from Tipton to GAI outside the TFR (but too close for their comfort). Not only are the F-15’s loaded with ordnance, the TSA recently ringed Washington with ground-based anti-aircraft. I fly through the TFR several times a week. Believe me, these guys at TSA are 1) deadly serious; and 2) not too smart. Do not be casual when approaching DC. Rely on your own navigating, not ATC, to guarantee avoidance of TFR.
Also, if you approach from the north, watch out for the Camp David prohibited area (it is also a TFR) just north of Frederick (P-40)…stay clear at least a 10-15 miles (actual size of TFR fluctuates between 5-8 miles). Good luck…and have fun (if possible after all the above) !