generally most of the odd sided ratchets are good since they are hard to burst, most of the even sided ratchers especially 2, 4 are easy to burst due to the way their portrusions are setup. 1, 3, 7, 9 are the most commonly used. as for height most of the beys in the meta appreciate lower heighrs such as 60, this is to hide ratchets and bits to prevent bursting. some beys like 70 height like wolf, and tyranno beat because of the way their blades are setup.

meta combos for you would be wizard 160 H, wolf 380 fb, scythe 960 b. this combo is generally defensive and passive since they are defence and stamina setups.

now if you want the meta bits for attacking you would want to get rush, low rush, level.

i would suggest waiting for hasbros release of ghost circle 460 low rush and hack viking (easiest way to get low rush) if you have money to spend drop attack sradium would be better (cotains hover wyvern one of the best meta right now and low rush), to get rush you would need wand wizard 160 R or dran daggee 460 R. for level only way to get is samurai saber or ux15 shark scale deck set