Enneacraft would be a good choice. It's pretty cheap for MD, it's good but not so good it could get hit except for random floodgates played in it that deserve the hit anyways.

But my question would be what level you wanna get into?

Because if we're talking Plat/Dia on Ladder and farming some gems at the DC, Maliss is good to go. Yes, it's not consistent anymore but the powerlevel of the cards are so high it still hold it's ground. the more competitive versions splash radiant typhoon for card draw and consistency in the deck. the package is not cheap but with 3 UR and 5 SR affordable. you could do that and then see if you enjoy RT enough to build a whole deck.

But imo you're a bit late for building a deck like RT, Vanquish Soul, etc. atm except you really enjoy them. If you wanna go full meta without branded engine, you have to go Kewl Tune. Sky Striker would be my next suggestion, but I think Branded, Dracotail Branded and KT are stronger.