Light and low budget!
Frame - HANTU 240mm Carbon Fiber (50g) (30euro)
Motor - Emax Excelvan 2306 1650KV (29,5g) (50eu)
Prop - 6030, 6040 2blade (5eu)
FC+ESC: HAKRC F4120 3-6S 35A AIO (70eu)
Cam - RunCam Micro Swift 3 (30eu)
Vtx - Eachine tx200 200mw (10eu)
Receiver - XM+ (13eu)
weight 288gramm

frame - 120mm
motor - 2S1020
FC - SP RACING F3 EVO Brush Flight Controller
cam - Foxeer pico or Ant lite
VTX - Eachine VTX02 200mw
prop - 75mm
XM+

sum 68gramm

frame - Leader120mm
FC - Emax F3 Magnum 4in1 12/15A
motor - FullSpeed 4S 1106/4500KV
prop - Hurrican 3015/3018
cam - Caddx EOS2 or Runcam NANO2
vtx - Eachine vtx02 (200mw)
receiver - XM+

weight - around 87gramm

frame - Diatone 115mm
FC - Emax F3 Magnum 4in1 12/15A
motor - FullSpeed 3S 1104/6800KV
prop - Emax Avan 2527 or Gemfan 3025 to cut 2525!
cam - Foxeer Arrow micro
vtx - Eachine vtx02 (200mw)
receiver - XM+

weight - around 75gramm

frame:
Kaidju 135mm

FC:
JHEMCU GHF13 AIO F4
TalonF4 15/20A

motor:
HappyModel 3S 1204/6500KV - 4S 1204/5000KV
iFlight XING-E 3S 1105 4500KV - 4S 1105 6000KV

prop:
Gemfan Hurricane 3018 2blade (the best 0,75g)
HQ 3015 3blade (1.1g)!
HQ 3015/3020 2 blade (0,8/1g)


camera:
Caddx Ant micro
Runcam Nano 4

VTX:
Eachine vtx02 (200mw)

Receiver:
XM+

Sum weight: 72/76/78/80gramm

https://rotorbuilds.com/build/16964

Frame - ALFA X4 GTR 175mm
Motor - RacerStar 2206/2600KV
Prop - Gemfan 4052
FC - Full Speed F3SD Flytower
ESC - HAKRC 4in1, 2-4S 20/25A
Cam - Foxeer Razer
Vtx - Eachine tx200 200mw
Receiver - XM+

weight 266gramm

Hobby corner!

H8 mini
1S 8520 65mm (brushed) 100mm frame, AIO-LST S2, H31 (42gramm)
1S/2S 8520/8523 65mm (brushed) KKSmart 100mm frame, vtx02 200mw, F3 SPracing board, XM+ receiver (48/51gramm)
2S 1020 75mm (brushed)120mm frame, RC vtx02 200mw, F3 SPracing board, XM+ receiver (67/69gramm)
2" (3S/4S) Elf88 Caddx EOS2, Eachine vtx02 200mw, Emax F3 magnum 4in1 12/15A, FS1104 motor, XM+ receiver (67g)
2,5" (3S) Diatone 115mm, Foxer, Eachine vtx02 200mw, Emax F3 magnum and FS 1104 KV7500 motor, XM+ receiver (74g)
2,5" (3S) Diatone 115mm, Foxer, Eachine vtx02 200mw, Emax F3 magnum and Emax 1106 KV6000 motor, XM+ receiver (83g)
2,3" (4S) Diatone 115mm, RC NANO2, Eachine vtx02 200mw, Emax F3 magnum and FS1106C2 KV4500 motor, XM+ receiver (85g)
3" (4S) Leader 120, RC NANO2, Eachine vtx02 200mw, F3 magnum, FS1106C2 KV4500 motor, XM+ receiver (85g)
3" (3S) Leader 130, Runcam2, EWRF vtx 200mw, F3 magnum, RCinPower 1207 KV6000 motor, XM+ receiver (116g)
3" (4S) Alfa1306 Foxer-Monster, Eachine vtx02, F3SD FC + HAKRC 4in1 20/25A, Emax 1306 4000KV, XM+ receiver (124g)
3" (4S) Martian IV 140mm, Caddx Ant, Eachine vtx02, Jhemcu GHF420AIO F4 35A AIO,
Brotherhobby Tornado T1 1407 4100KV, XM+ receiver (163g)
3" (4S) HGLRC1407 Foxeer Razer, Eachine vtx02, F3SD FC + HAKRC 4in1 20/25A, HGLRC 1407 3600KV, XM+ receiver (147g)
4" (4S) LDARC XT1408 Foxeer Razer, Eachine vtx02, F3SD FC + HAKRC 4in1 20/25A, LDARC 1408 3750KV, XM+ receiver (186g)
4" (4S) RS2205 Foxeer Razer, Eachine vtx02, F3SD FC + HAKRC 4in1 20/25A, RacerStar2205 2600KV, XM+ receiver (266g)
5" (4S) Hantu 210, Runcam2, Eachine vtx02, Full Speed F3SD FC + HAKRC 4in1 20/25A, Forester 2205 KV2300 motor, XM+ receiver (270g)
6" (6S) Hantu 240, Runcam3, Eachine vtx02, HAKRC F4120 3-6S 35A AIO,
Emax Excelvan 2306 1650KV, XM+ receiver (288g)
Transmitter - H31 with extend range or Taranis QX7
Goggles - Eachine EV800D, CobraX V2,

Small drone with huge FUN!

frame - Elf88 (7euro)
FC - Emax F3 Magnum 4in1 12/15A (38eu)
motor - FullSpeed 3S 1104 KV75000 (35eu)
prop - Emax Avan 2" (2eu)
cam - Caddx EOS2 (13eu)
vtx - Eachine vtx02 (200mw) (7eu)
receiver - XM+ (13eu)
weight - around 68gramm

cost around 110euro

Light and low budget!
Frame - Hantu 210 (30euro)
Motor - Forester 2205/KV2300 (20eu)
Prop - KingKong 5040/3 (5eu)
FC - Full Speed F3SD Flytower (20eu)
ESC - HAKRC 4in1, 2-4S 20/25A (20eu)
Cam - Runcam micro2 (20eu)
Vtx - Eachine tx200 200mw (10eu)
Receiver - XM+ (13eu)
weight 242gramm

cost around 150euro